小学一年级数学计算题练习1200道.DOC

87-2587-20 60+959+9 88-8088-81元100分 4角8分50分 1角1分9分4620=66 403870 689=59581745 90-9= 24-10-7=46+5= 20+13-9= 8+57=34+(25+5)= 98-70= 58-(58-8)=65+20= 39+7-20= 25+7=50-8= 86-5= 4+65=20+67= 42+30= 73-40=85-7= 8+45= 76-60=65-47= 28+54= 68+29=92-46= 36+57= 70-25=3540 4230 50213530 288 3620377 578 8060780 970 719486 996 755395 263 276548 866 243768 7250 6930904 507 4058964 977 790679 906 50269870 840 628=705 464 1244540 8030 259148 179 7227970 763 909960 350 263878 4330 482387 445 2045557 4730 532258 5016 9760367 928 3240 164 759 4585820 627 475544 989 476687 736 7032410 484 7237520 754 697 908 426 8010269 866 9360394 6730 4430715 462 7284030 864 566279 346 3520603 959 768258 3420 9464730 2045 1000=1000= 3010= 9010=357= 3025= 925= 645= 538= 90908030 5020 3010309 533 4609030 809 80609070 5040 20503830 6720 56306033 2740 93704520 743 2896330 337 843617 5140 5892840 8430 7586860 7640 7770298 2016 13704530 4530 45318-7-9 154-6 176517-8-3 87-7-50 86-6-5099-9-70 78-8-40 40+10+4050+20+8 30+3+30 48-8+4077-720 3530-5 44-45094-4-60 15-44 48-85813-5 24209 42-4-3083-207 60106 1547015-84 15-7= 8+14= 17-9= 9+60= 50-20=89-80= 43-5= 27+8=7+53= 86+9= 13-9=97-8=44+50= 7+8=37+3= 68-50= 30+20=35+8= 47-8= 100-30=25+4+9= 83-7-30= 58+7+3=968-60= 70+35-8= 82-4+7=20+7= 3020= 90+9=6030= 24+6= 51+8=7+83= 855= 9870=45+20=