초4-1쌩큐기본(정답)본지

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초4-1쌩큐기본(정답)본지 2014.10.20 06:4 PM 페이지1 다민 2540DPI 175LPI 3~4학년군 수학 진도교재 1. 큰 수 3 4-1 2 2. 곱셈과 나눗셈 12 3. 각도와 삼각형 21 4. 분수의 덧셈과 뺄셈 34 5. 혼합 계산 43 6. 막대그래프 54 단원 성취도평가 61 쌩큐 익힘책 67

1 6000 7000 8000 9000 10000 1. 5 1 1000 10 1000 10 10000 1000 6 6000 1000 6 6000 1000 7 7000 1000 7 7000 1000 8 8000 1000 8 8000 1000 9 9000 1000 9 9000 1000 10 10000 1000 10 10000 2. 40000 3000 600 50 2 43652 3000600502 10000 4 40000 1000 3 3000100 6 60010 5 501 2 2 40000+3000+600+50+2=43652 1 8000 10000 2 10000 3 1000 100 10 1 4 5 10000 1 1000 10 10000 1000 10 10000 2 1 1000 10 10000 3 10000 9000 1000 9900 100 9990 10 9999 1 4 10000 9900 100 10000 8000 2000 1 1000500608 1000500608 2 34197 3 87902 4 5 500003000700609 6 1 41568 10000 41000 1100 510 61 8 41568=40000+1000+500+60+8 2 10000 31000 4100 110 91 7 34197

3 0 4 66806 6 6806 5 53769 10000 51000 3100 710 61 9 53769=50000+3000+700+60+9 6 4 8725 8 6 4128 4 8 7624 7 100000 1000000 10000000 98 980000 3. 10000 10 100000 10000 100 1000000 10000 1000 10000000 10000 98 980000 1 101001000 2 500000070000020000 500000070000020000 3 59004375 4 230191482301 9148 5 7619800761 9800 6 24571489 44000000 1 1 10 1 0 2 45720000 10000000 4 1000000 5 100000 710000 2 45720000=40000000+5000000+700000 +20000 3 0 0 4 23019148 2301 9148 5 7619800 761 9800 1 300200100 2 46583 3 58200 4 60009 8000020 5 6 153456 4670582 7 8 9 64870 10 1000 11 12 85630 1 10000 9700 300 9800 200 9900 100

2 46583 10000 41000 6100 510 81 3 3 0 0 0 5 10000 10 10 10000 100 100 10000 1000 1000 6 15 3456 15 3456 153456 467 582 467 582 4670582 7 1000 10 10000 9900 100 10000 9909 1 9910 7000 3000 10000 12 5 5 85630 4. 100000 1000000 10000000 100000000 385385 8000000000500000000 1000 10 100000000 1000 10 100000000 8 5 5 500 50000 5000 50 9 10000 6 60000100 43 4300 10 57 570 60000+4300+570=64870 10 4000000 4000 4000000 4000 1000 1 0 11 42 953 9 92 816 8 69 547 5 13 908 9 73 294 2 1 100101 2 31024814586 3 4 275303693654 5 8130 5400 27813054000027 6 7000000000 2 310 2481 4586 310 2481 4586 1 1 9000 1000 9900 100 9990 10 9999 1

3 1 100000000000 4 6 8 40000000000 6000000000 800000000 4 58 0000 0000 2753 369 3654 2753 369 3654 275303693654 6 12 7610032641 7000000000 1000000000 10000000000 100000000000 1000000000000 125125 200000000000005000000000000 1000 10 1000000000000 1000 10 1000000000000 5. 2 1 9000 1000 9900 100 9990 10 9999 1 3 2 2000000000000000 5 8 6 500000000000000 80000000000000 6000000000000 2586000000000000 1000 2 100 5 10 81 6 4 3507 6824 1900 6072 3507 6824 1900 6072 5 309 1000 0000 0000 6 325 4000 325400000000000 1 1010010001 2 100101 3 4 3507 6824 1900 6072 5 6 325400000000000 1 1 10 1 0 1 2 68145724653892 3 1010100 4 1000000000000 5 6 7 400000000000000 8 9 4 2700 10 1349585838 11 12 946007000000000 km

1 1 9900 100 2 68 1457 2465 3892 68 1457 2465 3892 11 3 1666 8567 12 1 9460070000000 km 9460070000000 100 946007000000000 100 946007000000000 km 3 10 10 10 14 100 14 1000 100 4 1000 10 9000 1000 9999 1 1 5 341 623411123 7 60000253878 6 600 623410253784 5 62345871023 6000 600 691123573824 100 625301005 6000 6 6 5168425 9000 9000 90080520700 900 31 927680000 9 4 9173205600 90 6. 10000 55000 65000 75000 85000 4 10000 10000 45000-55000-65000-75000-85000 4 7 4 400 8 2 6589074801014 6 62540080195248 60 1 1 10000 2 15671767 3 1000 4 328500428500 3045 5 30003 6 50000600007000080000 7 297307317327 9 4270 10 4 2700 10 4 2700 10 13 4958 5838 1349585838 1 1 10000 2 100 100 1

3 1 1000 4 10 15 5 10 0 1 300 10 30003000 10 3 6 1 10000 km 10000 7 1 10 10 7 6 7. < 1387000>985600 887650<988500 1 7 6 2 7 7512980 3 < > < 4 5 6 6789 123 1 7 6 2 6875984 < 7512980 6<7 3 810732 < 812469 0<2 725 165 > 725 158 6>5 2884 3603 < 2884 3894 6<8 4 7 8 8>7 5 96750>78600>51200 6 5 6789 2<3 4 123 1 510000052000005300000 2 100 3 4 > < 5 678257782597825 6 219220222 7 626200 8 8300 9 10 11 12 789 13 14

1 100000 1 2 1 100 3 4 6487625 > 641459 7 6 147 5624 < 148 1427 7<8 5 1 10000 6 1 1 11 54 469 3846 2794 3 4 0<2 >> 12 3>1 6 789 13 1427000000 14 2700 14 2700<29 14 10 9 9 0 > >> 7 10 10 62 14 620 14 6200 8 7800 7900 8000 8100 8200 8300 100 100 100 100 100 9 1 0 9 6 436739<528627 10 10 9 9860000000 6>5 4593500000 1 90090037900 37900 1-1 45800 2 70007000079352 79352 2-1 63184 3 58690005869 3-1 4 196020102010 2010 4-1 1690 1-1 10000 4 40000 1000 5 5000100 8 800 40000+5000+800=45800

2-1 91 627 600 63184 60000 2 6705 60004583 6 6 60000 63184 3-1 125 780 10 1250 7800 100 1 2507 8000 125 780 100 2 4-1 1450 40 6 14501490153015701610 16501690 6 1690 03 43 6958 7213 43 6958 7213 04 43 69587213 60000000 05 69072 10000 61000 910 71 2 69072=60000+9000+70+2 06 1000 10 100000000 07 2948 3047 0980 2948 3047 980 08 6 7045 1960 6704519600000 01 02 43095 03 4369587213 04 660000000 05 60000702 06 07 08 6704519600000 09 10 8000000000000 11 12 9 13 2 63002 73002 8300 14 318 15 10 16 > < 17 18 8765943210 19 1023485679 20 4 01 10000 9980 02 09 10 78 1349 5620 0000 78 1349 5620 11 40 4000 40 4000 4000 12 7400 5009 611 7400500906110000 13 1 1000 14 3 1800 10 31 8000 100 318 3 1800 10 3 1800 100

15 1 10 1380000000 100000 8 140000 45 16 147238926 > 87439623 9 8 7248320076 < 7249431200 8<9 17 43726904 43804321 207600000 89100000 8 9 7<8 >>> 18 9 8765943210 19 8 0 1023485679 20 8<9 4 0123 4 100 910 9 1000 10 4700 4 7000 13 8000 10 44 9700>29>14 2700 8 1 4960 km 30 44 9840 km 7 7066 km 14 2667 km 28 7066 km 5791 km 1 821 km 2 2794 km 98 7654321 1023456 78 7 7000000 70 7000000 70 100000

8877331100 8877331010 8 877331001 1001337788 1001337878 1 001337887 8 0 8+0=8 1 2152000 2 1 1000000 2 2000000 100000 1 100000 10000 5 50000 13700 m 20000 2900 m 10000 20000+10000=30000 20000+40000+50000=110000 30000+110000=140000 1000 2 2000 2000000+100000+50000+2000=2152000 2 2350000 1000000 2 100000 310000 5 27 5<8 6> 012345 7 3<8 =4 4< 456789 4 5

2 300300900 10 1010 99 9000 1. _ 300 3 300+300+300=900 300_30=9000 300 30 9000 5 300_40=12000 60_200=12000 500_30=15000 400_30=12000 _ 3_4=12 6_2=12 5_3=15 4_3=12 6 =50_200=10000 2. _ 1 66 0003 16000 30000 2 5 9 0 0 _ 6 0 4 3 35000 32000 42000 45000 4 5 6 50_200=10000 10000 555555 37003700 555 3700 5553704255 4255 23=20+3 185_23 185_20 185_3 185_23=4255 23 4255 1 0 0 2 900_60=54000 9_6=54 3 700_50=35000 7_5=35 40_800=32000 4_8=32 4 400_40=16000700_20=14000 800_60=48000 1 328232820 144614460 258825880 2 11227488602 1122 748 3 11000 7296 9740 21568 4 213 5 6 480_15=72007200 2

3 128 674 _ 5 7 _ 3 2 896 1348 640 2022 7296 21568 4 278 165 320 _ 4 0 _ 3 1 _ 4 3 11120 165 495 5115 960 1280 13760 5 643 25 2 _ 2 5 643_2 3215 643_20 1286 16075 6 480 15 480_15=7200 3 426_23=426_3+426_20 =1278+8520 =9798 4 923 _ 8 0 73840 5 548 548 548 _ 2 0 _ 3 1 _ 4 3 10960 548 1644 16988 1644 2192 23564 6 347_21=7287258_32=8256 7287<8256 7 346 69 346_69=23874 8 500_70=35000 700_40=28000 215_87=18705 468_65=30420 >>> 1 54005400 2 3 4 3 127885209798 4 73840 5 109601698823564 6 7 23874 8 9 7560 10 8897 kg 11 32412 12 660 1 600_9=5400 600_90=54000 2 700_70=49 0003 500_40=2 00004 9 252 30 252_30=7560 10 3 31 3 287_31=8897kg 11-37=839=839+37=876 876_37=32412 12 2 9 9_0=0 =0 _ 4 0 9_4=36 =6 107 2_4=8 _4+3=27 _4=24=6

30 44 4120 4 7140 7145 3. 4. 464 464 4684 4472 120 1230 3 120 30 12 3 1 72 85 1 1 33 3180 2 210280350 5 3 99 88 4 48015 5 25 6 40_4+29=189 70_7+34=524 1 180 60 18 6 18 6=3 180 60=3 1 3546 2 3 4 3 2642 4726 4 5 23_4+6=98 14_6+1=85 6 5 3 72 8=9 720 80=9 40 5=8 400 50=8 4 95 95 20_4=80 6 4 40< 189 189 189 40_4=160 160 29 7 70< 524 490 34 524 524 70_7=490 1 60 60 18_3=54 2 87 9028 30 90 30=3 78 8019 20 80 20=4 3 32_1=3232_2=6432_3=96 2 18_3=5418_4=7218_5=90 4

4 4 15< 64 60 4 1 5 4 6 23< 98 14< 85 92 84 6 1 6 92 18=5y2 2kg 5 3 2 40< 97 80 17 4 60< 254 240 14 4 180 60=378 30=2y18 217 50=4y17 5 96 40=2y16 352 40=8y32 6 7 360 60=6 < 630 70=9 8 397 70=5y47274 40=6y34 638 80=7y78 1 324012 2 3 4 5 216 832 6 7 < 8 321 9 10 11 6 12 333 13 8 14 509 9 143 20=7y3 435 70=6y15 555 60=9y15 643 80=8y3 325 50=6y25 295 30=9y25 10 94 43=2y8 76 17=4y8 72 19=3y15 11 175 30=5y25 30 5 25 6 5 5 1 12 40=8y13 =40_8+13=320+13=333 2 13 =246+74=320 320 40=8 8

14 30 29 =30_16+29=480+29=509 4 7 34< 268 238 30 6 57< 358 342 16 5 5. 6 153 18=8y9 8 9 5135 5135 312324 324147 135 162 1 1 6. 5102 234832434836815 2415423 17_20=340 17_30=510 423 340 510 2 1 61385 2 3 410819 516029 4 34_7+30=268 57_6+16=358 5 6 8 1 1 260390520 2 2 3 1915414410 12473413 4 36_24+3=867 35_26+13=923 5 6 1015 2 5 48< 286 240 46 286 288 1 1 13_20=26013_30=390345 260 390 2

2 14 38< 562 38 182 152 30 182 190 1 4 24 36< 867 72 147 144 3 26 35< 923 70 223 210 13 5 19 1 769 25=30y19 30 16 769 48=16y1 25 48 769 769 69=11y10 69 52 11 14 769 52=14y41 y 10 41 y y y 6 205 19=10y15 10 15 1 164 16038 40 4 242 24029 30 8 2 345 16_20=320 16_30=480 2 3 6 6 38< 228 228 0 43< 267 258 9 14 19< 274 19 84 76 8 21 32< 695 64 55 32 23 4 _+= 5 128 32=4406 64=6y22 246 47=5y11 1 4160 8240 2 219 16_21+9=345 3 4 814358 1812498 5 6 7 > < 8 9 5 10 2 11 1412 12 453 6 427 52=8y11 216 87=2y42 352 46=7y30 603 39=15y18 7 574 65=8y54197 26=7y15 651 51=12y39568 43=13y9 8 586 25=23y11 561 31=18y3 499 26=19y5 355 13=27y4 >>> 9 140 15=9y5 5

10 37 42_9=378 89 11 =36_12=432 432 30=14y12 14 12 12 543 12=45y3 2-1 294_53=15582 325_48=15600 614_25=15350 15600> 15582> 15350 3-1 654 23 654_23=15042 1 23236440 6440 1-1 4440 2 1494514945 2-1 3 202015060 15060 3-1 15042 4 1299 9 4-1 2 5 1010238 238 5-1 921 6 222222344344 344 6-1 479 7 25257 7m 7-1 5m 8 1561825 5 8-1 3 4-1 4 12 = y 290 12=24y2 2 5-1 36=25y21 =36_25+21=921 6-1 47 48=9y47 =48_9+47=479 479 7-1 = -1 =43-1=42 210 42=5m 1-1 10 3 7 37 120_37=4440 8-1 26 41_5=205 41_6=246 0 1233

01 4545 02 129412940 03 20160 10276 04 05 06 37_23+12=863 07 85 155 92 08 09 10 11 474 12 13 > 14 975655 15 15330 16 1146 17 21862 18 30 19 25 20 823 01 0 0 02 647_2=1294 647_20=12940 03 576 367 _ 3 5 _ 2 8 2880 2936 1728 734 20160 10276 04 300_20=6000 3_2=6 05 2 30< 75 60 15 75 75 30_2=60 06 23 37< 863 74 123 111 12 07 245 30=8y5245 16=15y5 245 27=9y2 08 35 3 274 274_3 _ 3 5 1370 274_30 822 9590 09 273_46=12558 429_35=15015 514_16=8224 608_24=14592 10 36 11 =24_19+18=474 352_47=16544 12 294 64=4y38 548 72=7y44 273 18=15y3 13 615 47=13y4 > 786 56=14y2 14 325_3=975975 15=6565 13=5 15 365_42=15330 708 96=7y36 16 684 58=11y46 11 46 17 643 34 18 750 25

19 4 23< 5 2 23_1=2323_2=4623_3=69 =2 23_24=552 =5 20 987 12=82y3 5 4 25 4 600_25=15000mL 20_10=20020_25=500 20_10+10=21020_11+11=231yy 20_23+23=483 10 19 19-10+1=10 1 990 11=90 1 50_90=4500cm 45 m 1 20 40 2293 1050 m 10 14 15000 ml 1800 m 45_40=1800m 1 8< 87 82 167 164 8_1=82 =2 8-82=16 =9 8_=164 =2 82_=164=2 167-164= =3 158 43=3y29 0 29+=43=43-29=14 14 4 =500_60_4=120000cm 1200 m 1200-150=1050m 200 ml 3 200_3=600mL 4 30 29162330 1 1 1 2 2 3 2 2000 7 700 10 100 8 8 4 234_12=2000+700+100+8=2808

3 1. 6 1 40 50 2. 0 1 2 3 231 4 5 6 50 1 2 3 1 1 2 3 100 4 120 70 5 55 80 6 4 5 1 90 1 2

3 100 4 0 120 0 1 0 180 70 5 6 0 2 0, 180 100 3 0 3. 180 4 5 0 180 6 90 0 90 90 180 1 2 3 4 5 6 4. 50

5 120 1 2 3 4 5 75 120 75 1 80 2 70 70 1 2 3 4 135 5 6 70 7 8 9 10 120 11 12 6 70 3 30 105 1 2 90 1 1 30 105 3 180 30 4 4 85 130 5 85 130 6 0 85 130 7 70

8 0 90 90 180 40 +30 =70 40-30 =10 9 60 60 60 10 120 30 4 120 11 11 12 1 10 2 9 3 8 4 7 6 5 60 10 60 60 12 ++ ++ 6 2 80 3 35 85 35+85=120 35 +85 =120 4 130 60 130-60=70 130-60 =70 1 8080 2 3 3585120 4 1306070 5 105 175 6 40 55 1 5. 7070 9090 403070 403010 5 45+60=105 45 +60 =105 125+50=175 125 +50 =175 6 80-40=40 80-40 =40 135-80=55 135-80 =55

6. 7. 507555 507555180 180 180 180 758565135 758565135360 360 180180 180180360 360 1 655065 180 2 75 130 3 65 4 35 5 6 140 1 65 50 65 ++=65 +50 +65 =180 2 180 70 +35 +=180 =180-70 -35 =75 25 +25 +=180 =180-25 -25 =130 180 3 180 180-75 -40 =65 4 90 55 =180-90 -55 =35 5 45 +45 +90 =180 40 +60 +60 =160 6 ++40 =180 +=180-40 =140 1 140558580 360 2 90360 3 4 50 115 5 80 6 235 1 140 55 85 80 +++=140 +55 +85 +80 =360 3 360 95 +80 +50 +135 =360 150 +45 +40 +145 =380 4 120 +105 +85 +=360 =360-120 -105-85 =50 75 +90 +80 +=360 =360-75 -90-80 =115 5 360 360-55 -95-130 =80 6 +65 ++60 =360 ++125 =360 +=360-125 =235 360

1 50 50 2 85 190 3 50 85 4 5 125 45 6 7 8 65 9 180 10 150 70 11 540 12 130 13 75 1 2 30+55=85 30 +55 =85 140+50=190 140 +50 =190 9 120 +100 +60 +=360 =80 110 +80 +70 +=360 =100 +=80 +100 =180 10 60 180 =180-90 -60 =30 =180-30 =150 70 80 150 120 50 =360-80 -50-120 =110 =180-110 =70 3 70-20=50 70-20 =50 180-95=85 180-95 =85 4 35 +75 =110 95 +45 =140 5 =85 +40 =125 =85-40 =45 6 50 +45 =95 110-70 =40 30 +35 =65 130-55 =75 80 +60 =140 7 +90 +50 =180 +140 =180 =180-140 =40 45 ++60 =180 +105 =180 =180-105 =75 8 120 ++70 +105 =360 =360-120 -70-105 =65 11 1 1 180 +360 =540 3 180 _3=540 12 =180-80 -35 =65 =360-80 -65-85 =130 13 =180-65 -35 =80 = =80 2=40 =180-65 -40 =75

8. 4 5 6 90 90 90 <<180 9. 343 444 1 2 3 4 5 6 1 2 3 4 6 5 55 6 22 cm 1 1 2 3 4 =6 cm

5 =5 cm 6 8cm =8+8+6=22cm 10. 1 2 =40 =8 cm =45 6565 3 = = = = = =90 4 =(180-80 ) 2=50 5 45 45 1 2 40 845 3 4 5050 5 6 110 6 = = + =180-40 =140 =70 180-70 =110

11. 3 606060 6 60 60 5_3=15cm 60 1 2 6060 3 607607 4 120 5 6 15 cm 1 1 3 21 2 3 4 5 6 7 7 8 5 9 8cm 10 110 11 63 cm 12 12 12 2 3 3 7cm 60 4 60 180 =180-60 =120 5 4 95 5 180 180-85 -45 =50 85 45 50 6 60 7 =21 3=7cm 8 6+6+3=15cm 15 3=5cm

9 24 3=8cm 10 60 180-65 -65 =50 +=60 +50 =110 11 9cm7 =9_7=63cm 12 1 8 4 4 8+4=12 1 8 4 4 8+4=12 1-1 3 2-1 360 12 30 8 4 30 _4=120 3-1 90 40 = + 90 +40 =130 130 4-1 180-30 -45 =105 360-45 -105-115 =95 1 4 4 1-1 3 2 30150 150 2-1 120 3 105105 105 3-1 130 4 707080 80 4-1 95 5 110 5-1 6 16168 8 cm 6-1 15 cm 7 55555570 70 7-1 80 8 15363612 12 cm 8-1 18 cm 5-1 180-80 -30 =70 6-1 41-11=30cm 30 2=15cm 7-1 = =180-130 =50 180-50 -50 =80

8-1 20+14+20=54cm 54 3=18cm 05 06 07 01 02 145 03 04 05 06 07 08 09 135 25 10 < 11 7510 12 560 13 14 15 45 16 8cm 17 18 4 19 150 20 75 08 09 55 +80 =135 80-55 =25 10 45 +25 =70 < 135-55 =80 11 12 60 01 13 180 45 +55 +=180 =180-45 -55 =80 02, 145 03 65 14 360 90 +90 +125 +=360 =360-90 -90-125 =55 04 0 180 15 180 180-55 -80 =45

16 = =6 cm =20-6-6=8cm 17 12 11 12 1 11 1 10 2 9 3 8 4 7 6 5 10 2 9 3 8 4 7 6 5 11 12 1 10 2 9 3 8 4 7 6 5 105 110 25 6 4 10 65 75 11 12 1 10 2 9 3 8 4 7 6 5 18 11 12 1 10 2 9 3 8 4 7 6 5 1 2 2++ 2 2+2=4 19 30 7 5 30 _5=150 20 60 45 =180-60 -45 =75 =180-125 =55 =180-130 =50 =180-55 -50 =75 =180-75 =105 =180-90 -40 =50 =360-90 -50-105 =115 115-50 =65 180-65 -65 =50 60 50 +60 =110 =360 12=30 =30 2=15 2 30 +30 +15 =75 = =25 =90 =180-25 -90 =65 = - =90-65 =25

1 6 2 6 3 2 4 2 5 3 6 5 30 +45 =75 60 +45 =105 30 +90 =120 90 +45 =135 60 +90 =150 90 +90 =180 6 45-30 =15 60-45 =15 90-60 =30 90-45 =45 90-30 =60 4 3 3 cm4cm6cm3 cm5cm5cm 2 4 4 cm3cm6cm4 cm4cm5cm 2 5 5 cm2cm6cm5 cm3cm5cm 5 cm4cm4cm 3 30 45 6 1 cm6cm6cm2 cm6cm5cm 3 cm4cm6cm3 cm5cm5cm 4 cm4cm5cm 60 45 5

4 1. 2;9@;+3;9^;=(2+3)+(;9@;+;9^;) 4 =5+;9*;=5;9*; 12123333 6 ;7@;+;7@;=;7$;L 3+1 ;5#;+;5!;= =;5$; 5 2. 35812 3221131 1 235 2 2355 3 ;1!2!; 4 26 5 3;1 0; 5;9*; 6 ;7$; L 1 7+4 3 ;1 2;+;1 2;= =;1!2!; 12 4 3+5 ;1 0;+;1 0; ;2 0; 10+10 1 54912 2 21232 3 4 1;1 0; 1;1 1; 4;8#; 5;9$; 5 6;1 0;5;1 0; 6 4;6@;+3;6%;=8;6!;8;6!; m 3 3;9&;+2;9#;=;; 9 ;;+;; 9 ;;=;; 9 ;;=6;9!; 5 2;1 0;+1;1 0;=(2+1)+(;1 0;+;1 0;) =3+;1 0;=3;1 0; 4 ;1 0;+;1 0;=;1!0!;=1;1 0; ;1 1;+;1ª1;=;1!1^;=1;1 1;

1;8%;+2;8^;=(1+2)+(;8%;+;8^;) =3+1;8#;=4;8#; 2;9&;+2;9^;=(2+2)+(;9&;+;9^;) =4+1;9$;=5;9$; 5 3;1ª0;+2;1 0;=(3+2)+(;1ª0;+;1 0;) =5+1;1 0;=6;1 0; 2;1 0;+2;1 0;=(2+2)+(;1 0;+;1 0;) =4+1;1 0;=5;1 0; 2 3;1 0;+1;1 0;=(3+1)+(;1 0;+1 0;) =4+;1 0;=4;1 0; 3 2;7#;+1;7^;=3;7(;=4;7@; ;7#;+;7%;=;7*;=1;7!; 1;7@;+2;7#;=3;7%; 4+3 4 ;8$;+;8#;= =;8&; 8 5 3;1 1;+2;1 1;=5;1!1);1;1 1;+4;1 1;=5;1 1; 6 4;6@;+3;6%;=(4+3)+(;6@;+;6%;) =7+;6&;=7+1;6!;=8;6!;m 5;1!1);>5;1 1; 2;9*;+2;9^;=5;9%;1;9&;+3;9&;=5;9%; 5;9%;=5;9%; 6 + 1 538 2 4;1 0; 3 4 5 > = 6 7;8%;km 7 1;1 5; 8 7;7%;cm 9 11;1 2;km 10 6;7!; 11 123 12 7 5+3 1 ;9%;+;9#;= =;9*; 9 =3;8#;+4;8@;=(3+4)+(;8#;+;8@;) =7+;8%;=7;8%;km + =3;8#;+4;8@;=;; 8 ;;+;; 8 ;;=;; 8 ;;=7;8%;km 7 -;1 5;=;1!5); =;1!5);+;1 5;=;1!5*;=1;1 5; 8 2;7$;+2;7$;+2;7$;=5;7!;+2;7$;=7;7%;cm

9 6;1 2;+4;1 2;=(6+4)+(;1 2;+;1 2;) =10+1;1 2;=11;1 2;km 10 4;7$; 1;7$; 4;7$;+1;7$;=5+;7*;=5+1;7!;=6;7!; 9 5+ 9 11 ;9%;+ = 1 ;8#; 2 1;4@; 3 8622 4 ;1 2; 3;7@; 5 ;6#; 1;9@; 6 5;8@;cm 7-4 1 ;8&;-;8$;= =;8#; 8 ;8!; ;9*; 123 2 12 ;8%;+ =3 1 8 =11 2 45678 910 7 2;4#; 1;4!; 1;4@; 2;4#;-1;4!;=1;4@; 8-6 3 ;9*;-;9^;= =;9@; 9 3. 2 21431111 11-8 4 ;1!2!;-;1 2;= =;1 2; 12 5;7$;-2;7@;=(5-2)+(;7$;-;7@;) =3+;7@;=3;7@; ;4#; ;4!; ;4@; ;4#;-;4!;=;4@; 5-2 5 ;6%;-;6@;= =;6#; 6 2;9&;-1;9%;=(2-1)+(;9&;-;9%;) =1+;9@;=1;9@; 6 28;8&;-23;8%;=(28-23)+(;8&;-;8%;) =5+;8@;=5;8@;cm

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2 5;6@;-2;6%;=: 6 :-: 6 :=: 6 :=2;6#; 3 5;3!;-2;3@;=4;3$;-2;3@;=2;3@; 6;7$;-3;7%;=5: 7 :-3;7%;=2;7^; 3;1 0;-1;1ª0;=2;1!0#;-1;1ª0;=1;1 0; 7;1 2;-5;1!2!;=6;1!2&;-5;1!2!;=1;1 2; 3 8-2;7%;=7;7&;-2;7%;=5;7@; 8-5;1 3;=7;1!3#;-5;1 3;=2;1 3; 4 8;1 4;-4;1ª4;=7;1@4);-4;1ª4;=3;1!4!; 10;1 4;-6;1!4)=9;1!4(;-6;1!4);=3;1ª4; 3;1!4!;>3;1ª4; 4 8-2;5#;=7;5%;-2;5#;=5;5@; 5;5@;-3;5$;=4;5&;-3;5$;=1;5#; 5 8;7@;-5;7%;=7;7(;-5;7%;=2;7$; 6 20;8$;-8;8&;=19;; 8 ;-8;8&;=11;8%;kg 5 ;1 1; 8 ;1 1; ;1 1; 3 ;1 1; ;1 1;-;1 1;=;1 1; 6 ;5!; 2;5!; 5 1;5!; 2;5!; 7 5;9&;+=10 =10-5;9&;=9;9(;-5;9&;=4;9@; 1 42832525 4441 2 3 5;7@;2;1 3; 4 5 ;1 1; 6 7 8 13;1 0; 9 63 ;7!; 10 8;1!5!;km 11 2;1 2; 12 14;5#;cm 2 6;5!;-2;5$;=: 5 :-: 5 :=: 5 :=3;5@; 8 6;1 0;+12;1 0;=18;1!0);=19 12;1 0;-6;1 0;=11;1!0#;-6;1 0;=5;1 0; -=19-5;1 0;=18;1!0);-5;1 0;=13;1 0; 9 0 ;7!; 6;7$;- =;7!; =6;7$;-;7!;=6;7#; 7 7 =6=3 10 =3;1!5@;+7;1!5$;=10+1;1!5!;=11;1!5!;km =20;1 5;-11;1!5!; =19;1@5@;-11;1!5!; =8;1!5!;km

11 +1;1 2;=5;1 2; =5;1 2;-1;1 2;=4;1!2^;-1;1 2;=3;1ª2; 3;1ª2;-1;1 2;=2;1 2; 12 3 =5_3=15cm =;5!;+;5!;=;5@;cm =15-;5@;=14;5%;-;5@;=14;5#;cm 1-1 -1;8$;=6;8#; =6;8#;+1;8$;=7;8&; 2-1 11 2;1 1; 3 2;1ª1;2;1!1); 2;1ª1;+2;1!1);=4+1;1 1;=5;1 1; 3-1 3;7%;-;7^;=2: 7 :-;7^;=2;7^;L 3;7%;+2;7^;=5+: 7 :=5+1;7$;=6;7$;L 1 3;1 3; 3;1 3; 1-1 7;8&; 2 787821636 3;9^; 2-1 5;1 1; 3 414;8!;7 7L 3-1 6;7$; L 4 5;7#;8;7!;2;7%; 2;7%; cm 4-1 1;5$; cm 5 818191 1 5-1 1;1 0; 6 3103;1!1);1;1 1; 1;1 1; kg 6-1 3;1 0; kg 7 464 ;1 3;;1 3; 7-1 ;1 5;;1 5; 8 1;1 1;12 12 8-1 123 4-1 = =3;5@;cm =8;5#;-3;5@;-3;5@; =5;5!;-3;5@;=4;5^;-3;5@; =1;5$;cm 5-1 ;1ª0; ;1 0; ;1ª0;+;1 0;=;1!0#;=1;1 0; 6-1 4;1 0;+2;1 0;=6;1 0;kg 10-6;1 0;=9;1!0);-6;1 0;=3;1 0; kg

7-1 11 3 7 4 ;1 5; ;1 5; 10-6 02 1-;1 0;=;1!0);-;1 0;= =;1 0; 10 03 ;7$;+;7^;=: 7º:=1;7#; 8-1 ;9%;+;9*;=: 9 :=1;9$; 1;9$;>1 9 4> 123 04 4;9*;-2;9^;=(4-2)+(;9*;-;9^;)=2;9@; 3;9%;-2;9^;=2: 9 :-2;9^;=;9*; 05 3;1 0;+;1 0;=3;1!0@;=4;1 0; 2;1 0;+1;1ª0;=3;1!0^;=4;1 0; ;1 0;+;1 0;=;1!0$;=1;1 0; 01 1;4!; 02 1064 03 1;7#; 04 2;9@;;9*; 05 06 1;1 7;;1 7; 07 > 08 10;7@;4;7$;4;7^;;7^; 09 4;1 1; 10 11 7;9#; m 12 5;2 0; 13 2;1 6; km 14 2;4#;+1;4@;=4;4!;4;4!; 15 1;1 0;m 16 35;7%;km 17 5km 18 1234 19 50;4#; kg 20 1;5#; 06 ;1ª7;+;1!7#;=;1@7@;=1;1 7; ;1!7#;-;1ª7;=;1 7; 07 3;8#;+1;8&;=4: 8º:=5;8@; 2;8%;+2;8$;=4;8(;=5;8!; 5;8@;>5;8!; 08 8;7$;+1;7%;=9;7(;=10;7@; 3;7%;+;7^;=3: 7 ;;=4;7$; 8;7$;-3;7%;=7: 7 ;;-3;7%;=4;7^; 1;7%;-;7^;=: 7 :-;7^;=;7^; 3+2 01 ;4#;+;4@;= =;4%;=1;4!; 4 09 3;1 1;-;1ª1;=2;1!1^;-;1ª1;=2;1 1; 2;1 1;+1;1 1;=3;1!1$;=4;1 1;

10 2;1!5#; 2;1 5; 2;1 5; 2;1!5!; >>> 11 1;9#;+2;9%;+3;9$;=3;9*;+3;9$;=6: 9 :=7;9#;m 19 =28;4!;-5;4#;=27;4%;-5;4#;=22;4@;kg =28;4!;+22;4@;=50;4#;kg 12 -+=4;2!0!;-1;2!0&;+2;2!0#; =3;2#0!;-1;2!0&;+2;2!0#; =2;2!0$;+2;2!0#; =4;2@0&;=5;2 0; 20 =1;5@;+;5$;=1;5^;=2;5!; 2;5!;-;5#;=1;5^;-;5#;=1;5#; 13 3-;1!6#;=2;1!6^;-;1!6#;=2;1 6;km 14 2;4#;+1;4@;=3;4%;=4;4!; 15 2;1 0;-;1 0;=1;1!0!;-;1 0;=1;1 0;m 16 15;7#;+20;7@;=(15+20)+(;7#;+;7@;) =35+;7%;=35;7%;km ;7@; km 1;8%; m 12345 3;5#; kg 25;1 0; L 1;4@; 17 - =35;7%;-30;7%;=5km 18 ;8#;+;8@;=;8%; ;8%;> 8 5 1234 1;7%;+1;7#;=2;7*;=3;7!;km 1;7$;+: 7 :=1;7$;+1;7^;=2: 7º:=3;7#;km 3;7#;-3;7!;=;7@;km

5;5@;-4;5#;=4;5&;-4;5#;=;5$;kg 2;5$;+;5$;=2;5*;=3;5#;kg 3;8&;+2;8%;-4;8&;=5: 8 :-4;8&;=1;8%;m 1 2 ;1 6; 3 ;1 6; 4 ;1 6; -8;1 0;+3;1 0;=20 1 1 ;2; 1 =20-3;1 0;+8;1 0; 1 ;2; 1 =19;1!0);-3;1 0;+8;1 0; ;2; 1 ;2; 1 =16;1 0;+8;1 0; =24;1!0!;=25;1 0;L 2;9^;+3;9*;=5: 9 :=6;9%; 6;9%;<8;9@;-1 9 =1 6;9%;<7;9!; 2 16 16 4 ;1 6; 3 16 16 1 ;1 6; =2 6;9%;<7 =3 6;9%;<6;9*; =4 6;9%;<6;9&; 4 ;1 6;+;1 6= 4+1 16 =;1 6 =5 6;9%;<6;9^; =6 6;9%;=6;9%; 3 1 2 5-1;4#;-1;4#;=4;4$;-1;4#;-1;4#; =3;4!;-1;4#; =2;4%;-1;4#; =1;4@;

5 728 2832 732 1. 35-7+4=32 35-7+4=24 28 32 24 11 ( ) ( ) 46-33+7=6_ 40 6 5 38-17+11=21+11=32 38-(17+11)=38-28=10 6 18+16-11=34-11=23 1 223030 603434 2 371717 123636 3 24 14 4 20 50 30 50 5 38-17+11=32 38-(17+11)=10 6 18+16-11=2323 84 416 816 2. 32 8_4=16 4 16 32 8_4=1 32 ( ) ( ) 1 1 2 3 35-16+5=19+5 =24 35-(16+5)=35-21 =14 4 46-33+7=13+7=20 57+25-32=82-32=50 63-(25+8)=63-33=30 18+(47-15)=18+32=50 1 72828 783939 2 1844 54545 3 49 1 4 8 8 2 189 5 48 8_3=18 48 (8_3)=2 6 12_4 6=88

1 2 3 28 4_7=7_7 =49 28 (4_7)=28 28 =1 1 2 19 33 3 72264444 4 42 61 109 42 5 30-(15-6)_3=3 14+4_7-25=17 6 9 4 36 9_2=4_2=8 12_4 6=48 6=8 70 (5_7)=70 35=2 63_(9 3)=63_3=189 36 9_2=2_ 18 2 1 2 7+4_3=7+12 =19 (7+4)_3=11_3 =33 5 48 8_3=6_3=18 48 (8_3)=48 24=2 6 12_4 12_4 6=48 6=8 4 49+7_8-63=49+56-63 =105-63=42 72-9_3+16=72-27+16 =45+16=61 53+(26-12)_4=53+14_4 =53+56=109 87-3_(11+4)=87-3_15 =87-45=42 3. 32 3264 646 326466 5 30-(15-6)_3=30-9_3 =30-27=3 14+4_7-25=14+28-25 =42-25=17 6 =30-3_7=30-21=9

4. 500 500100 100120 500100120120 5 25-(32-18) 7=25-14 7 =25-2=23 6 2580 3-2840 4=860-710=150 1 2 3 60 9 4 86 7 68 35 5 25-(32-18) 7=23 6 150 1 1645 436 2 3 4 5 < 6 7 82 8 380-85_3=125125 km 9 10 8 11 2000 12 300 1 2 3 61+36 6-7=61+6-7 =67-7 =60 (75-45) 6+4=30 6+4 =5+4 =9 4 80-42 6+13=80-7+13 =73+13=86 40 8+7-5=5+7-5 =12-5=7 62+12 (4-2)=62+12 2 =62+6=68 (90-30) 6+25=60 6+25 =10+25=35 2 48 4_6=12_6=72 3 4 96-(40+16) 4=82 56 14 82 5 70-53+27=17+27=44 52+(43-37)=52+6=58 44<58 6 20 4_3=5_3=15 14_2 7=28 7=4 54 (9_3)_4=54 27_4=2_4=8

7 30+2_7-18=30+14-18=44-18=26 14+(18-12)_7=14+6_7=14+42=56 26+56=82 8 380-85_3=380-255=125km 9 23-11+24 6=23-11+4 =12+4=16 32 8+18-7=4+18-7 =22-7=15 16>15 1 728465858 2421355 2 3 4 23 23 28 6 5 35+4_9-60 5=59 2 25 5+3_2-4=7 5 6 10 7 2 24 3 2+24 (7-3)=2+24 4=2+6=8 11 2000-400_4 1600 2000-400_4+1600 =2000-1600+1600 =400+1600=2000 12 3250 5 2850 3 2850 3-3250 5=950-650=300 5. 43200 2000 21500 3200150038001800 300300 11 7 3 4 15+4_7 2-6 =15+28 2-6 =15+14-6 =29-6=23 8_9+48 12-53 =72+4-53 =76-53=23 18+5_(7-3) 2 =18+5_4 2 =18+20 2 =18+10=28 75 (5+10)_6-24 =75 15_6-24 =5_6-24 =30-24=6 5 35+4_9-60 5 =35+36-12 =71-12=59

100 36243 3 6. 3672 2425 1 2 3 1 972126060 61834242 2 3 21 72 15 26 4 5 40-{(8+6) 2+10}=23 3_{(11-3)+4}-21 =3_(8+4)-21 =3_12-21 =36-21=15 49 {12-(13-8)}+19 =49 (12-5)+19 =49 7+19 =7+19=26 4 8_4-65 (8-3)+1 =32-65 5+1 =32-13+1 =19+1=20 8_4-{65 (8-3)+1} =32-(65 5+1) =32-(13+1) =32-14=18 > 5 40-{(8+6) 2+10} =40-(14 2+10) =40-(7+10) =40-17=23 2 63-{21-(11-9)_7}=56 2 7. 7 14 4_25_2 2+2_32+2_4 56 3 94-{7_(6-1)+38} =94-(7_5+38) =94-73=21 18+3_{(17-8)_2} =18+3_(9_2) =18+54=72 1 4 2 14 3 29 4 2 5 9 6 49

1 5 9 13 17 +4 +4 +4 2 4 5-4=1 1 4 28 4=7 2 4_15=60 3_15=45 3 1+4+yy+4=1+4_7=1+28=29 7 4 1 3 5 7 yy 2 5 2 1+2_4=9 6 1+3+5+7+9+11+13=49 3 35 35 4=8y3 8 32 32 3=10y2 10 35 32 8 4 1 2 5 2_5=10 5 1 2 26 2=13 8. 6 =2_18=36 =1_18=18 25 210 315 420 525 25 10 =2+3+2+3+2+3+2+3+2+3 =(2+3)_5=25 1 1 7 3 8 2 6045 4 10 5 13 6 3618 2 {6+(23-9) 2}_2=26 3 4 2 5 45 6 7 23 8 10 9 200_3-600 (3_5)=560 10 40+20_5 2-7=8383 11 {80-(6+4)_5} 2=1515 12

1 8_7-5+12 4=56-5+3 =51+3=54 24 6+5_7-5=4+35-5 =39-5=34 3_{(12+6)-8} 5 =3_(18-8) 5 =3_10 5 =30 5=6 10 2 7 7 23-9 2 3 {45-(27+9) 3}_2 =(45-36 3)_2 =(45-12)_2 =33_2 =66 4 (20-6) 2+8_2 =14 2+8_2 =7+16=23 5_(29-15) 7+15 =5_14 7+15 =70 7+15 =10+15=25 -=25-23=2 5 120 (10-4)_2+5 =120 6_2+5 =20_2+5 =40+5 =45 6 3_6+32 {20-(4+8)} =3_6+32 (20-12) =3_6+32 8 =18+4=22 {2+42 (12-5)}_3 =(2+42 7)_3 =(2+6)_3 =8_3=24 7 3 23 3 8 17+3+3=23 8 2 3 2 29-2=2727 3=9 2 3 9 10 9 200_3-600 (3_5) =200_3-600 15 =600-40 =560 10 40+20_5 2-7 =40+100 2-7 =40+50-7 =90-7 =83 11 {80-(6+4)_5} 2 =(80-10_5) 2 =(80-50) 2 =30 2 =15 12 123456789_9_1=1111111101 123456789_9_2=2222222202 123456789_9_3=3333333303 y 123456789 9 0

1 99327 72 8_3=27 1-1 45-84 6=31 2 153 2-1 3 5050 5050 g 3-1 20 4 418 18 L 4-1 9 5 716 5-1 6 448 8 6-1 200 7 31 31 7-1 59 8 215 15 8-1 31 1-1 14 45-14=31 14 84 6 45-84 6=31 4-1 18 4 8 18_4 8=72 8=9 5-1 31+(23-5)_4=31+18_4 =31+72 =103 31+23-5_4=31+23-20 =54-20 =34 6-1 1 =2500 5 =500 1 =4200 6 =700 1 = 1-1 =4200 6-2500 5 =700-500 =200 7-1 5+30 {17-(5+7)}_9 2-1 80-56 (4+3)=80-56 7=80-8=72 3-1 = _30 - _8 =18_30-65_8 18_30-65_8 =540-520 =20 5+30 {17-(5+7)}_9 =5+30 (17-12)_9 =5+30 5_9 =5+6_9 =5+54 =59 8-1 1 2 3 4 yy 4 7 10 13 yy 3 10 =4+3_9=31

01 8336 02 549 03 40 5 04 05 18 06 07 08 53-72 8=44 09 86 10 65 11 12 > 13 14 _ 15 60-7_(3+6) 3=39 75+64 (15-7)=83 16 3 17 18 (48-12) 4=99 19 400_3+480 4_6=19201920 g 20 8888888 01 59+24-47=83-47=36 07 84-54 6+7=84-9+7 =75+7=82 08 72 8= 953-9=44 53-72 8=44 09 67+{(32-7) 5+43}-29 =67+(25 5+43)-29 =67+(5+43)-29 =67+48-29 =115-29 =86 10 70-75 {2_(23-9)-13} =70-75 (2_14-13) =70-75 (28-13) =70-75 15 =70-5 =65 02 63-(45+9)=63-54=9 03 04 05 21+42 7=21+6=27 (21+42) 7=63 7=9 27-9=18 06 120-(44+56)=120-100=20 49 (18-11)=49 7=7 (2+4)_(15-8)=6_7=42 11 8_{(24-6) 3+12}=144 12 25-24 4+72 9=25-6+8 =19+8=27 64 4+2-36 9=16+2-4 =18-4=14 27>14 13 {42+(28-13)_4} 6 =(42+15_4) 6 =(42+60) 6 =102 6=17

14 36 3_2=12_2=24 15 60-7_(3+6) 3 =60-7_9 3 =60-63 3 =60-21 =39 75+64 (15-7) =75+64 8 =75+8 =83 16 81 (4_-3)=9 4_-3=9 4_=12 =3 17 111+11+22+33+5yy 45+70 {3_(9-7)+8} =45+70 (3_2+8) =45+70 (6+8) =45+70 14 =45+5=50 (30+42) 8+25 =72 8+25 =9+25=34 12_{(5-1)_4} 4 =12_(4_4) 4 =12_16 4 =192 4=48 18 (48-12) 4=36 4=9 19 400_3+480 4_6=1200+720=1920g 20 334445555yy 8888888 8104282 204 cm _+- 80 120 g 8100 2 810 108 (8_10)+4 2=80+2=82 96 3 cm 45_4 cm 2_4 cm 96 3+45_4-2_4 =32+180-8 =212-8 =204cm 2 1 5+4_3-2 1=5+12-2=15 5+4-3_2 1=5+4-6=3

5-4_3+2 1=5-12+2 5-4+3_2 1=5-4+6=7 5_4+3-2 1=20+3-2=21 5_4-3+2 1=20-3+2=19 68=8_(8-6) 4 =8_2 4 =16 4=4 420=20_(20-4) 4 =20_16 4 =320 4=80 (984-792) 8=24g 792-{(984-792) 8}_28 =792-24_28 =792-672=120g + _2 (550_6+750)_2=(3300+750)_2 =4050_2 =8100 1 -+_ +_- 462285 2 -(_+) +(-) _ 1 23-5+6_74 =23-5+444 =18+444 =462 6 3+72_4-5 =2+288-5 =290-5 =285 2 26-(5_4+7) 3 =26-(20+7) 3 =26-27 3 =26-9 =17 5+(34-6) 7_2 =5+28 7_2 =5+4_2 =5+8 =13

6 1. 10 5 0 1 2 1 1289433 2 33 3 4 5 6 1 12+8+9+4=33 1 2 1 3 4 4 5 3 7 6 5 3 12 5 12 2 1 3 4 4 6 4 10 5 2. 0 1 5 10-7=3 6 30-10-8-7=5

7 0 5 10 8 9 9 9 6 6 10 10 5 1 2 2 12 3 4 5 6 7 71671040 8 9 9 6 10 11 12 8 0 11 0 5 10 1 5 10 10 5=2 12 10 2 6 2_6=12 3 5 0 =24-9-7=8 4 6 7 1 7 16 7 10 =7+16+7+10=40 3. 1kg 6kg 5 5kg 1kg

6 6kg 1 2 3 3 4 5 8 6 2 3 3 2 4 3 4 5 10 5 4 2 4 5 5 1 5 8 8 6 10 10 5 1 2 3 4 20 5 6 4. 1 3

4 5 100 20 5 10 6 6 11 12 1 2 6941231 3 3 4 5 2 6 7 25 8 9 10 11 12 3 12 4 12 4=3 1 1212 12 1-1 31 2 64642 2 2-1 2 3 5314 14 3-1 20 4 5310104 4 4-1 2 4 5 2 6 7 10 5 6 4 10+5+6+4=25 9 1-1 31 31 2-1 8 10 10-8=2

3-1 8 2 4 6 05 8+2+4+6=20 10 4-1 2+5+3=10 5 0 12-10=2 1 1 06 01 31 02 03 13 04 7 05 06 07 08 09 10 18 11 12 4 13 14 70 15 5 16 17 18 24 19 20 1 36 01 =7+5+13+6=31 07 08 09 10 1 =4+3+3+6+2=18 11 03 13 12 4 04 7 7 13

14 10 7 10_7=70 15 =35-10-13-7=5 16 10 5 5 AOBAB 0 17 18 =60 5=12 =12_6=72 =72 3=24 19 () 120 60 0 24 24 12=2 20 120 24 120-24=96=1 36 B =23-8-7-3=5 10 5 0 A B O AB A 8B 5O 7AB 3 AOBAB 10 6 14 48-10-6-14=18 TV

1 2 12151310 1291114 3 1 () 15 10 5 10-10=0 15-9=6 13-11=2 14-10=4 0 1 24 =24-12=12 =24-9=15 =24-13=11 =24-14=10 3 0 6 2 4

1. 2 3 300 30 30000 3000 3 1 10000 2 3 64218 4 40000+8000+700+20+5 5 3000000000 6 6107 305261073052 7 8 14824086789 9 700000000 10 11 97539853 12 < 13 14 5805800 15 10 16 17 8 18 100000 19 6789 20 6754310 3 10000 61000 4100 210 11 8 64218 6 6107 3052 61073052 7 756 1000 0000 5309 6300 0709 2001 8 148 2408 6789 148 2408 6789 14824086789 9 7 7 10 40 4000 40 4000 4000 11 1 100 12 78359504 < 78369000 5<6 13 14 10 10 58 1 580 1 5800 15 1 10 16 17 509 2004 200 704 5092004020007048 18 7 7000 7 7000 100000 1 19 8 8 7 =5 87514000<87514600 0<6 =6 87614000>87514600 6>5 6789 20 7 6754310

2. 1 5454 2 184518450 3 229238206112 4 18549 5 6 333240 7 4727 8 3605402 9 36_22+35=827 10 1518603 11 > 12 < 13 2800022880 14 15 16 28854 17 26950 18 57 19 5 20 220000 2 615_3=1845 615_30=18450 3 382_16=(382_6)+(382_10) =2292+3820 =6112 4 687_27=18549 5 3 2 6 25 2 _ 2 5 326_2 1 6 3 0 326_20 6 5 2 8 1 5 0 7 8 18_20=36018_30=540476 360 540 2 476 18=26y8 9 22 36< 827 72 107 72 35 11 287_35=10045328_30=9840 12 352 46=7y30427 52=8y11 13 700_40=28000572_40=22880 14 89 32 89 21=4y589 32=2y25 89 43=2y3 21 4 43 15 492 44=11y8 613 50=12y13 553 60=9y13 2 2 5 25 3 574 76=7y42 16 687 42 687_42=28854 17 _ =490_55=26950 18 58 57 19 180 25=7y5 5 20 762 34=22y14 22 22_10000=220000

3. 12 1 2 105 3 120 4 5 125 8 6 7 110 8 95 9 10 5605 11 12 13 14 15 2 16 115 17 120 18 7cm 19 6 20 49 cm 2 3 4 5 80+45=125 80 +45 =125 175-90=85 175-90 =85 6 180-55 =125 7 +40 +30 =180 =180-40 -30 =110 8 120 +90 +55 +=360 =360-120 -90-55 =95 9 10 60 11 13 14 ( ) ( ) ( ) ( ) 180 16 80 115 105 =180-105 =75 80 +90 ++75 =360 =360-80 -90-75 =115 17 = =30 30 +30 + +90 +90 =360 +240 =360 =360-240 =120 18 19-5=14cm 14 2=7cm 19 =7+7+4=18cm =18 3=6cm 20 7cm7 7_7=49cm 7cm 7

4. 1 5 2 4 3 233434 4 5-3;1 0;=4;1!0);-3;1 0;=1;1 0; 5 6;3!;-2;3@;=: 3ª:-;3*;=: 3 :=3;3@; 6 4;1 5; 2;7%; 7 11;1 3;1;1ª3; 8 1;7$; 9 2;5#; 10 11 8;1 0; 12 11;1!1);5;1 1; 13 > 14 ;1 5; 15 6;7#; 16 3;7$; 17 4;7!; 18 2;1 3;kg 19 5;9@;+5;9@;+5;9@;=15;9^;15;9^;cm 20 2;5@;m 10 6;7@;-3;7%;=2;7$;2;7^;+;7%;=3;7$; 11 5;1 0;+2;1ª0;=7+;1!0^;=7+1;1 0;=8;1 0; 12 9;1 1;+2;1 1;=11+;1!1);=11;1!1); 9;1 1;-4;1 1;=5+;1 1;=5;1 1; 13 7;1 4;-3;1ª4;=6;1@4);-3;1ª4;=3;1!4!; 9;1 4;-5;1!4);=8;1!4(;-5;1!4);=3;1ª4; 14 ;1ª5; ;1 5; ;1ª5;-;1 5;=;1 5; 15 3;7^; 2;7$; 3;7^;+2;7$;=5+: 7º:=5+1;7#;=6;7#; 16 =7;7!;-3;7$;=6;7*;-3;7$;=3;7$; 17 1;7#;+2;7%;=3+;7*;=3+1;7!;=4;7!; 18 31;1 3;-28;1ª3;=30;1!3&;-28;1ª3;=2;1 3;kg 3+2 1 ;7#;+;7@;= =;7%; 7 7-3 2 ;8&;-;8#;= =;8$; 8 6 2;1 5;+1;1!5#;=3+;1!5&;=3+1;1 5;=4;1 5; 8;7!;-5;7#;=7;7*;-5;7#;=2;7%; 7 4;1!3!;+6;1 3;=10+;1!3*;=10+1;1 3;=11;1 3; 6;1 3;-4;1!3!;=5;1@3);-4;1!3!;=1;1ª3; 8 3-1;7#;=2;7&;-1;7#;=1;7$; 9 =8;5@;-5;5$;=7;5&;-5;5$;=2;5#; 19 5;9@;+5;9@;+5;9@;=10;9$;+5;9@;=15;9^;cm 20 =4;5$;-1;5#;=3;5!;m =3;5!;-;5$;=2;5^;-;5$;=2;5@;m 2;5@; m

5. 3 57-28+15=44 1 64848 2 16811 3 4 5 6 34 7 30 8 9 93 10 435 11 54 (27-18)=6 12 13 14 3 15 51 16 24_8 16=1212 17 8 18-19 (96-60) 6_9=54 20 {42+(42-9)} 3=2525 29 44 4 (9+3)_2-5=12_2-5 =24-5 =19 =97-(36-12) 6 =97-24 6 =97-4 =93 10 16_(42+256 32)-365 =16_(42+8)-365 =16_50-365 =800-365 =435 11 27-18= 954 9=6 54 (27-18)=6 12 55 16 > 13 198 154 > 15 1+4+7+10+13+16=51 16 24_8 16=192 16=12 5 6 16+64 8=16+8=24 (16+64) 8=80 8=10 24+10=34 7 31+174 6-7=31+29-7=60-7=53 13+22-4_3=13+22-12=35-12=23 53-23=30 8 37-(18 3)=37-6=31 37-18 3=37-6=31 17 7_{(-3)+4}=63 (-3)+4=9-3=5 =8 18 53-72 8=53-9=44 19 (96-60) 6_9=36 6_9 =6_9=54 20 {42+(42-9)} 3=(42+33) 3 =75 3=25 9 97-{540 (6+9)-12} 6 =97-(540 15-12) 6

6. 1 18 2 3 6 4 5 6 2 7 8 8 9 10 28 11 12 10 13 14 50704040200 15 30 16 7 17 34 18 19 20 1 18 18 3 6 6 10 84 6 10 8+4+6+10=28 12 5 50 10 13 15 70 40 70-40=30 4 16 =5+2=7 5 0 17 =10+12+5+7=34 18 6 5 10 2 7 4 8 8 9 0 5 10 19 20

1 1 100 2 17865 3 40000 4 660000 5 6 7 17050 8 70549 9 4574260 10 17254864 11 300000 12 11000000 13 14 15 9800503 16 15009750 17 2481762874 18 108624750987 19 700000000 20 21 22 49054000072 23 780060050865 24 28176548206547 25 650458724870670 26 4000000000000 27 28 29 89000025174309 30 31 284294 32 88249024 33 39133923 34 35 50175317 36 404 37 25025 38 39 151500 40 9 80009800980 41 < 42 < 43 < 44 > 45 < 46 > 47 < 48 > 49 < 50 > 51 > 52 < 53 < 54 < 55 > 56 < 14 30 5470826400000000 34 27 428 4 38 1 200102 100001 1 10000 2 10000 400 3 1 1000 10 10000 2 10000 9500 500 9600 400 3 10000 6000 32456 4 7000400208 50000+7000+400+20+8 5 6 76039 7 65749 8 98742 1. 2. 4 57428 10000 51000 7100 410 21 8 57428=50000+7000+400+20+8 5 69547 6 74956 7 49765 4 69 547 574 956 949 765 7 6 10000 71000 6100 010 31 9 76039

7 65749 10000 61000 5100 710 41 9 8 74265 12 28 570 280570 987 1480 9871480 98742 13 80000000 80000 10 11 10000 12 12 10000 150 150 10000 2750 2750 3. 100000100000010000000 9 835 4725 2018 6000 10 11 12 280570 9871480 13 8000000080000 9 8354725 835 4725 20186000 2018 6000 6 4 8 5 1 2 7 9 100000000 14 2000 500 15 264754283257 16 17 30000000000 8000000000 18 148705472468 19 4. 14 1 8000 2000 9500 500 15 2647 5428 3257 2647 5428 3257 16 1 9000 1000 17 3 8 764295476 30000000000 8000000000 18 67 5248 0000 1487 547 2468 1487 547 2468 148705472468

19 123 6472 0000 6000 654 7410 0000 600 48 6 2487 0000 6 5 67 8947 5000 60 1000000000000 20 13247256479587 21 1010100 22 1000000000000 23 24 309100000000000 25 7000000000000 26 20 132 4725 6479 0587 132 4725 6479 587 21 10 10 1 1 10 1 100 100 5. 22 9900 100 9000 1000 1 26 5 500 5 50 11 27 145000155000165000 28 265275285 29 376377379 30 350004500055000 31 477497517 32 9709700 33 100 6. 27 10000 1 28 10 1 29 1 1 30 1 10000 km 10000 23 325 4000 0000 0000 24 309 1000 309100000000000 25 7 7 31 1 20 20 32 10 10 97 1 970 1 9700 33 1 100

<< 34 35 > < 36 7. 34 35 15876572 > 9872489 8 7 205 1400 < 210 257 0<1 36 587 6 2474 5000 587 4 1498 7200 587 4 2500 0000 587624745000 5874 1498 7200 5874 2500 0000 587414987200 2 1 6000 2 20000 3 36000 4 63000 5 24000 6 42000 7 49000 8 12000 9 45000 10 32000 11 8316 12 7866 13 15136 14 36720 15 16 15922 17 28885 18 19 31906 20 16254 21 3 22 4 23 5 24 6 25 2y13 26 4y12 27 6y5 28 7y9 29 8y11 30 31 3y320_3+3=63 32 2y1540_2+15=95 33 8y1830_8+18=258 34 9y2790_9+27=837 35 8y320_8+3=163 36 2 37 4 38 6y6 39 3y18 40 3 41 5 42 4y1 43 6y3 44 45 2y17 46 423_4=92 47 519_5=95 48 2y2532_2+25=89 49 2y242_2+2=86 50 6y911_6+9=75 51 772_7=504 52 8y2532_8+25=281 53 8y1323_8+13=197 54 6y821_6+8=134 55 6y1459_6+14=368 56 18y414_18+4=256 57 24y1732_24+17=785 58 19y227_19+2=515 59 61y212_61+2=734 60 21y432_21+4=676 15 18166 18 16224 30 4y26 44 5y10

15 293 _ 6 2 586 1758 18166 21 3 30< 90 90 0 25 2 40< 93 80 13 31 3 20< 63 60 3 16 419 _ 3 8 3352 1257 15922 22 4 20< 80 80 0 26 4 20< 92 80 12 32 2 40< 95 80 15 51 7 72< 504 504 0 53 8 23< 197 184 13 55 6 59< 368 354 14 57 24 32< 785 64 145 128 17 52 8 32< 281 256 25 54 6 21< 134 126 8 56 18 14< 256 14 116 112 4 58 19 27< 515 27 245 243 2 33 8 30< 258 240 18 35 8 20< 163 160 3 47 5 19< 95 95 0 49 2 42< 86 84 2 34 9 90< 837 810 27 46 4 23< 92 92 0 48 2 32< 89 64 25 50 6 11< 75 66 9 59 61 12< 734 72 14 12 2 0 60 21 32< 676 64 36 32 4 1 88 0003 2 3 4 3 54000 4 5 < 6 7 20000 1. _

2 700_40=28 0003 80_500=4 00004 3 900_60=54000 4 200_70=14000400_60=24000 500_30=15000 5 900_70=6300080_800=64000 63000<64000 6 600_40=24000 300_80=24000 500_50=25000 400_60=24000 11 387 24 2 _ 2 4 387_2 1548 387_20 774 9288 12 657_24=15768548_32=17536 15768<17536 13 248_31=7688367_28=10276 7688<10276 14 360 25 360_25=9000 7 =500_40=20000 3. 8 9309300 9 218854707658 10 2788036244 11 12 13 14 9000 9 547_14=547_4+547_10 =2188+5470 =7658 10 697_40=27880 697_52=36244 2. _ 55 5150 15 120160 4 16 37 17 88 55 18 19 > 20 213 21 10 15 40_4=160 160 40=4 17 64 8=8 640 80=8 30 6=5 300 60=5 18 240 60=4210 70=3450 90=5 19 480 60=8490 70=7 20 97 20=4y17156 30=5y6 210 60=3y30

21 185 20=9y5 20 9 5 10 4. 29 516012 30 7140 31 6 32 5955 62528 33 34 < 35 2 5. 32 22 4 23 24 25 26 27 28 5 29 30 143 14019 20 7 22 82 8019 20 80 20=4 23 24 25 82 18=4y10 87 15=5y12 69 12=5y9 97 21=4y13 31 183 18027 30 6 183 27=6y21 33 34 158 26=6y2358 46=7y36 35 247 35=7y2 2 26 88 23=3y19 77 19=4y1 27 99 27=3y18 69 11=6y3 82 18=4y10 28 87 15=5y12 12 5 6. 36 2320 24_23+20=572 37 23655411 151101055 38 2118753 39 40 41 151

36 572 24_20=480 24_30=720 2 3 38 _+= 39 32<35 416 75=5y41 287 35=8y7 356 32=11y4 439 45=9y34 40 2... 35 27 63... 13 68 947 38 24... 35 51 18... 29 947 27=35y2947 38=24y35 947 51=18y29947 68=13y63 41 376 25=15y1 15 1 1 312 2 123 3 120 4 65 5 105 6 70 7 35 8 140 9 155 10 11 12 13 14 15 16 17 18 19 45 20 85 21 22 139 23 164 24 30 25 40 26 65 27 49 28 82 29 40 30 55 31 80 32 25 33 60 34 60 35 60 36 37 120 38 80 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 6 58 10 59 5 60 40 61 50 62 30 63 64 65 66 67 68 69 3 70 5 71 8 72 60 73 60 74 60 12 15 18 21 170 36 120 45 48 14 15 70 115 16 17 85 135

18 100 45 46 29 =180-40 -100 =140-100 =40 47 48 30 =180-90 -35 =90-35 =55 49 50 31 =180-30 -70 =150-70 =80 32 =180-130 -25 =50-25 =25 33 =180-40 -80 =140-80 =60 34 =360-120 -80-100 =240-80 -100 =160-100 =60 35 =360-100 -65-135 =260-65 -135 =195-135 =60 36 =360-140 -40-60 =220-40 -60 =180-60 =120 1 2 3 132 1. 1 2 37 =360-75 -80-85 =285-80 -85 =205-85 =120 38 =360-85 -80-115 =275-80 -115 =195-115 =80 4 11 5 30 120 6 150 2.

6 12 150 30 5 150 4. 3. 30 13 14 15 16 17 105 7 8 9 10 11 12 13 140 7 0 14 50 8 180 15 135 135 9 16 60 60 60 10 0 180 11 17 105 105 105

19 45 5. 8040 18 7070 19 20 100 195 21 45 65 22 23 40 45 20 65+35=100 65 +35 =100 120+75=195 120 +75 =195 21 90-45=45 90-45 =45 175-110=65 175-110 =65 22 105-55 =50 85-40 =45 23 25 +15 =40 45 +35 =80 35 +20 =55 95-45 =50 120-75 =45 24 60 90 30 ++=60 +90 +30 =180 25 =180-115 -40 =25 26 ++30 =180 +=180-30 =150 27 80 +50 +50 =180 30 +120 +40 =190 28 =180-45 -65 =70 29 =180-90 -45 =45 =180-60 -70 =50 30 30 40 70 =180-30 -40 =110 =180-110 =70 7. 6. 180 24 609030 180 25 25 26 150 27 28 70 29 30 70 360 31 1255535145 360 32 95 33 140 34 35 55 36 185 37 115 31 125 +55 +35 +145 =360 32 =360-110 -90-65 =95

33 ++110 +110 =360 +=360-110 -110 =140 34 45 +65 +80 +150 =340 65 +90 +105 +100 =360 35 =360-115 -110-80 =55 36 =360-110 -70-50 =130 =360-115 -120-70 =55 +=130 +55 =185 37 85 120 115 =360-120 -90-85 =65 =180-65 =115 8. 38 39 40 41 42 40 41 42 =180-45 -35 =100 43 44 45 46 19 cm 47 12 cm 9. 43 38 44 45 39

46 7cm 7+7+5=19cm 47 =36 3=12cm 11. 60606 53 54 99 86060 55 56 120 57 140 10. 53 48 49 5 307 50 51 7575 52 9 48 54 60 55 49 =7 cm =30 50 50 50 51 =(180-30 ) 2=75 52 =10+10+5=25cm =(25-7) 2=9cm 56 60 180 =180-60 =120 57 =180-50 -50 =80 =60 +=80 +60 =140

1. 4 1 ;5$; 2 ;4#; 3 ;9*; 4 ;1 0; 5 5;1!1); 6 4;4#; 7 4;6%; 8 4;9*; 9 1;3!; 10 1;6@; 11 1;8!; 12 1 13 5;1 2; 14 6;1 0; 15 6;1 1; 16 8;1 3; 17 ;3!; 18 ;6$; 19 ;7@; 20 ;9!; 21 ;1 0; 22 ;1ª1; 23 ;1 3; 24 1 6; 25 1;7@; 26 3;5#; 27 7;1 0; 224 3535 1 235 2 23 3 1224 4 4377 5 ;1!4@; 6 5;9%; 7 < 8 ;1 0; L 9 9;7%; km 1 2 28 5;1 3; 29 1;1 2; 30 2;1 5; 3 31 6;9%; 32 3;1 1; 33 ;7%; 34 ;8#; 35 ;1 0; 36 1;9@; 37 3;3!; 38 4;9*; 39 2;1 5; 40 3;1 8; 41 ;3!; 42 ;5@; 43 1;6!; 44 1;7$; 45 4;4#; 46 1;1 1; 47 ;1ª0; 48 3;1!5#; 49 1;4#; 50 ;5$; 51 ;7$; 52 1;1ª0; 53 2;9$; 54 7;8&; 55 4;1 1; 56 2;1!2); 57 1;3@; 58 2;8#; 59 2;7^; 60 3;1!3); 61 2;5$; 62 3;9^; 63 1;1!5); 64 4;1ª0; 1;6@;+1;6@;=(1+1)+(;6@;+;6@;)=2+;6$;=2;6$; 7+5 5 ;1 4;+;1 4;= =;1!4@; 14 6 2;9!;+3;9$;=(2+3)+(;9!;+;9$;)=5+;9%;=5;9%; 7 1;1 2;+2;1 2;=3;1!2);2;1 2;+1;1 2;=3;1!2!; 3;1!2);<3;1!2!; 3+3 8 ;1 0;+;1 0;= =;1 0;L 10 9 + =4;7!;+5;7$;=9+;7%;=9;7%;km

2. 42611 31141 10 511 11 33 12 561113 13 1432 14 2;1 0;+1;1 0;=;1@0&;+;1!0%;=;1$0@;=4;1 0; 15 5;7@;4;7$; 16 > 17 -;1 2;=;1ª2; =;1ª2;+;1 2;=;1!2^;=1;1 2; 18 7;8#;+4;8&;=11+1;8@;=12;8@;km 17 1;1 2; 18 12;8@; km 10 11 3. 532 1313 19 ;7#; 20 1;6@; 21 4311 22 1;1 0;1;1 0; 1;1 0; 23 ;1 2; 24 4;9%; cm 5+6 12 ;8%;+;8^;= =: 8 :=1;8#; 8 13 6-3 19 ;7^;-;7#;= =;7#; 7 20 2;6#; 1;6!; 1;5#;+1;5$;=(1+1)+(;5#;+;5$;) =2+1;5@;=3;5@; 1;6@; 2;6#;-1;6!;=1;6@; 22 3;1 0;-2=1;1 0;1;1 0;-;1 0;=1;1 0; 3;1 0;-2;1 0;=1;1 0; 15 2;7$;+2;7%;=4+1;7@;=5;7@; 1;7^;+2;7%;=3+1;7$;=4;7$; 23 ;1ª2; ;1 2; ;1ª2;-;1 2;=;1 2; 16 3;5$;+2;5#;=6;5@;1;5#;+4;5#;=6;5!; 6;5@;>6;5!; 24 25;9&;-21;9@;=(25-21)+(;9&;-;9@;) =4+;9%;=4;9%;cm

11 12 4. - 31 25 3112 26 1;6$; 27 7641 5461 28 29 3;8$;4;1 1; 30 26 31;6@; 1;6$; 3-1;6@;=1;6$; 28 2L 1L 0 2-;6%;=1;6^;-;6%;=1;6!;L 3;9@; 1;9&; 1;9$; 3;9@;-1;9&;=1;9$; 32 4;5#;-2;5$;=: 5 :-: 5 :=;5(;=1;5$; 33 9;8#;-4;8%;=8: 8 :-4;8%;=4;8^; 34 6;1 2;-3;1ª2;=5;1!2(;-3;1ª2;=2;1!2); 5;1 2;-2;1 2;=4;1!2%;-2;1 2;=2;1!2!; 2;1!2);<2;1!2!; 29 7-3;8$;=6;8*;-3;8$;=3;8$; 7-2;1ª1;=6;1!1!;-2;1ª1;=4;1 1; 30 10-4;7#;=9;7&;-4;7#;=5;7$; 35 =4;7@;+6;7#;=10+;7%;=10;7%;km =23;7$;-10;7%;=22;; 7 ;;-10;7%;=12;7^;km 23;7$;-4;7@;=19;7@; 19;7@;-6;7#;=18;7(;-6;7#;=12;7^;km 5. 51212 137612 31 1;9$; 32 23149914 33 4;8^; 34 35 12;7^; km

5 1 17 2 26 3 26 4 55 5 40 6 18 7 27 8 68 9 39 10 6 11 16 12 13 63 14 4 15 16 105 17 42 18 19 264 20 60 21 184226199199 22 54112727 23 3783567070 24 7172488 25 37 26 72 27 28 162 29 48 30 31 113 32 153 33 62424747 34 93622727 35 4816324141 36 1212288484 37 16 38 26 39 40 20 41 710 42 43 36 44 58 45 46 15 47 28 48 49 19 50 5 51 52 11 53 20 54 12 16 15 10 18 120 27 59 30 47 39 89 42 80 45 10 48 21 51 10 54 15 26 (17-5)_3+36=12_3+36 =36+36=72 27 46+52-13_3=46+52-39 =98-39=59 29 61-87 3+16=61-29+16 =32+16=48 30 42+70 (43-29)=42+70 14 =42+5=47 37 20-8_(2+3) 10 =20-8_5 10 =20-40 10 =20-4=16 38 19+2_12 (17-11)+3 =19+2_12 6+3 =19+24 6+3 =19+4+3 =23+3=26 39 27+{69+(32-2) 3}-17 =27+(69+30 3)-17 =27+(69+10)-17 =27+79-17 =106-17=89 1 16+5-4=21-4=17 3 23+(13-10)=23+3=26 11 8_8 4=64 4=16 14 60 (3_5)=60 15=4 25 28+6_4-15=28+24-15 =52-15=37 45 2468 2 +2+2+2 5 8+2=10 46 13610 +2+3 +4 5 10+5=15 47 1 7 7_4=28

48 36912 3 +3+3 +3 7 3+3_(7-1)=3+18=21 49 14710 3 +3+3 +3 7 1+3_(7-1)=1+18=19 4 7_(10 2)_4=7_5_4=35_4=140 5 64 8_2=8_2=16 7_9 3=63 3=21 90 (9_2)=90 18=5 6 15_6 5=90 5=18 52 5 =3+1+3+1+3=11 53 10 =3+1+3+1+3+1+3+1+3+1=20 1 2943 2943 2 > 3 21 2 64-17+24=47+24=71 64-(17+24)=64-41=23 71>23 3 1. =19+14-12=33-12=21 2. 4 5 6 18 7 8 9 18 10 48112222 11 32-2_7=18 12 204 13 34 km 3. 13 250-72_3=250-216=34km 7 8 9 27-5_3+6=27-15+6 =12+6 =18 12 15+6_9-27=15+54-27=69-27=42 (15+6)_9-27=21_9-27 =189-27=162 42+162=204

14 15 16 18 17 18 19 70 4. 14 15 16 29+18 6-14=29+3-14 =32-14 =18 18 14+(42-24) 6=17 18 17 19 3960 3-5000 4 =1320-1250 =70 3 21 9_8-27 3+6=69 72 63 69 23 8 4_9+7-5 =2_9+7-5 =18+7-5 =25-5=20 5+7_2-54 6 =5+14-9 =19-9=10 24 (4+6)_3 5-2 =10_3 5-2 =30 5-2 =6-2=4 28 (11-4)_2+5 =28 7_2+5 =4_2+5 =8+5=13 -=13-4=9 25 72 (15-7)_3+6 =72 8_3+6 =9_3+6 =27+6=33 9 5. 20 3661477 21 69 22 23 24 9 25 33 26 83242525 27 27 28 {7+(16-4) 6}_3-17=10 29 30 6.

27 21+{(12-8)_9 6}=27 4 36 6 27 29 {8+(28-14) 7}_2 =(8+14 7)_2 =(8+2)_2 =10_2 =20 30 52-{(8+16) 3} =52-(24 3) =52-8=44 12+{(61-5) 7+8} =12+(56 7+8) =12+(8+8) =12+16=28 16+6_{(21-5) 4} =16+6_(16 4) =16+6_4 =16+24=40 32 1+4+7+10+13+16=51 33 4 344 3 4 3 35-3=32 32 4=8 3 4 8 9 34 9 35 4824 36 12 34 1 2 18 2=9 35 =2_24=48 =1_24=24 8. 36 28 2=14 30 2=15 12 12 7. 31 3 32 51 33 9 31 14710yy 3

6 1 2 1 3 4 5 6 7 6 8 9 4 10 2 11 12 64 13 14 2 1 2 2 8 3 4 5 6 7 7137835 1. 1 5 10 2 5 0 20 10 2 4 2_4=8 3 4 6 6 200 100 7 1 7 13 7 8 =7+13+7+8=35 0 1 2 3 4 2. 11 20 8 11 9 10 11 10 0 8 11 11

9 10 5 0 13 10 2 20 14 15 2 10 11 A B O AB 0 5 10 5 0 =14-5-3-2=4 16 17 6 8 7 4 6+8+7+4=25 19 2 20 2 3 1 8 1 3 2 2 4 3 4. 3. 12 13 14 15 2 16 17 25 18 19 20 21 10 22 23 21 5 50 10 22 12 12 23