人教版二年级数学下册口算练习题及答案.ppt

1、58-36= 89+21= 420+80= 432= 4600+4700= 273+6= 99= 280+450= 279= 43-30= 81= 420+80= 64-8= 96-42= 730-190= 78+15= 27-3= 819= 82= 3200+5100= 124+18= 328= 255+36=,22,730,9300,6,93,3,13,81,15,56,21,500,8300,24,93,4,9,540,8,54,500,41,4,484= 280+450= 648= 48-5= 1800-900= 96-42= 497+7= 5+58= 4900-1800= 124+1

2、8= 58-36= 64-8= 1200-400= 280+450= 1200-400= 99= 43-30= 83-20= 81= 280+450= 65+37=,28,27,67,900,730,800,8,13,800,3100,54,63,730,81,730,63,21,22,14,8,56,42+13= 53+8= 843= 80-44= 800+900= 34+9= 64-8= 77= 213= 3700-370= 800+900= 53+8= 800+900= 255+36= 65+37= 280+450= 84+7= 567-3= 700-200= 60+600=,55,7,

3、1700,91,43,61,6,36,56,1,3330,1700,61,67,41,5,730,660,500,1700,400-300= 80+70= 180-90= 700-60= 60+600= 180-90= 30+60= 40+80= 700-100= 100-20= 1800+200= 900+800= 240-180= 1400-600= 2100-700= 6600-600= 300+1000= 280+450= 1800-900= 490-180=,90,640,120,90,90,660,600,80,2000,1700,60,800,1400,900,730,6000,

4、1300,310,150,100,1200-400= 800+1100= 48-5= 124+8= 65+30= 89+21= 324+10= 35+35= 64-8= 648= 7000+3000= 84+48= 5+58= 243= 3700-3000= 8500-5500= 7(213)= 40(26)= 72(24)= 990= 497+7= 486+5=,800,1900,60,11,18,10000,700,5,50,8,56,50,63,8,3000,49,9,0,13,14,93,27,21+82-60= 36+34-14= 73+12-71= 21+82-60= 44-5+1

5、2= 100-76+22= 72-45+32= 54-21-18= 67-47+22= 21+82+17= 83-27+10= 54+21-18= 65-33-18= 68-65-3= 54-52+17= 88-51-24= 76-63+1= 63+18+11= 65+15-47= 77-34+55= 43-29+13=,43,59,120,14,13,33,98,14,0,66,15,51,56,14,46,42,57,19,92,27,43,35-(28-28)= 77-38+42= 60-34+35= 17+(27-10)= 55+(38-15)= 54-41+36= 99-88+77=

6、 75+15-30= 92-6+11= 42-37+54= 77-64+22= 12+(29-19)= 69+10-36= 27+12-28= 67+27-37= 33-17+15= 75-(36+10)= 72-54+12= 65-(39-15)= 62-18+24= 54+21+18=,35,34,88,43,59,31,41,68,29,11,35,60,78,81,61,49,97,22,57,30,93,53-(29+19)= 35+12-28= 86-12-15= 57-33+31= 36-27+9= 77-19-16= 88-34+18= 85-36+27= 12+79-62=

7、51-27+28= 51-42+53= 77-(65-6)= 71-52+36= 75-(24+26)= 75+(24-23)= 32+(45-38)= 81-45+36= 24-16+40= 63+12-42= 53-(37+15)= 63-(23+28)=,5,55,72,52,55,39,33,19,18,76,62,25,72,1,59,42,29,18,76,48,12,1800+200= 900+800= 240-180= 1400-600 = 2100-700= 6600-600= 300+1000= 280+450= 1800-900= 490-180= 1200-400= 8

8、00+1100= 48-5= 497+7= 124+8= 65+30= 89+21= 486+5= 324+10= 35+35= 48-26+18=,2000,800,1300,310,27,60,18,1700,730,1400,800,14,93,50,60,6000,900,1900,11,13,40,64-8= 48= 77= 213= 700-200= 60+600= 400-300= 80+70= 180-90= 700-60= 60+600= 180-90= 30+60= 40+80= 700-100= 100-20= 84+48= 497+7= 124+18= 255+36=

9、427= 843= 567-3= 65+37= 851=,56,90,90,50,640,6,41,120,14,660,90,600,80,85,21,6,67,32,1,7,150,100,660,500,5,45+4= 38+4= 49+3= 76+6= 65+7= 38+5 = 56+8= 53+5= 35+9= 25+3= 64+4= 49+5= 48+2= 93+3= 86+8= 62+6= 33+8= 78+5= 9+99= 100-89=,17,28,37,34,24,29,24,30,90,13,28,18,41,20,48,61,56,28,38,39,45+5= 11=

10、55= 728= 99= 248=147= 61= 153= 362= 42= 62= 62= 105= 242= 497= 102= 546= 204= 496= 213= 36= 93= 90-45= 244= 155= 279= 99= 729= 342= 010= 06= 1000= 350= 2173=,50,3,0,0,0,0,3,81,3,2,4,25,2,5,45,8,6,6,6,9,7,18,7,5,3,12,5,9,2,9,6,9,1,1,3,364= 55= 56+41= 567= 162= 426= 82= 51= 45-39= 363= 246= 567= 366=

11、243= 45= 273= 84= 568= 369= 366= 455= 66= 126= 14= 186= 18= 248=366=486= 468=,9,8,4,3,1,2,5,6,7,2,8,6,6,8,20,4,3,6,4,3,8,3,7,4,8,9,9,97,1,8,546=77= 51=16= 568= 217= 287= 73= 357= 236= 427= 459= 306= 497= 92= 567= 648= 246= 637= 85-8= 43= 168=728=27=99= 279= 57= 189= 83= 8193=,9,3,1,4,35,2,8,5,21,5,2,9,4,6,5,7,9,14,24,7,1,18,32,1,3,3,6,8,12,5,729= 819= 91= 189= 11= 426= 248= 364= 637= 1