80道脱式计算五年级上册带答案

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上册,答案,年级,计算

80 道脱式计算 答案过程 1. 25×(8+10

=1. 25×8+1. 25×10 =10+12. 5=22. 5 9123-123+8. 8 =9123-123-8. 8 =9000-8. 8 =8991. 2

1. 24×8. 3+8. 3×1. 76 =8. 3× 1. 24+1. 76) =8. 3× 3=24. 9 9999×1001

=9999×(1000+1 =9999× 1000+9999×1 =10008999

14. 8×6. 3-6. 3×6. 58. 3×3. 7 =14. 8-6. 5 × 6. 38. 3× 3. 7 =8. 3×6. 3+8. 3×3. 7 8. 3×(6. 33. 7 =8. 3×10 =83

1. 24+0. 78+8. 76

=1. 24+8. 76 +0. 78 =10+0. 78 =10. 78 933-157-43 =933-157+43 =933-200 =733 4821-998

=4821-1000+2 =3823

I32×125×25

=4× 8×125× 25

=4×25 ×(8× 125 =100×1000=100000 9048÷268

=2600+2600+2600+1248 ÷26

=2600÷26+2600÷26+2600÷26+1248÷269 =100+100+100+48 =348

2881÷ 43

=1290+1591 ÷ 434 =1290÷43+1591÷43 =30+37

3. 2×42. 3×3. 75-12. 5× 0. 423×16

=3. 2×42. 3×3. 75-1. 25×42. 3×1. 6 =42. 3×(3. 2×3. 75-1. 25×1. 6)

=42. 3×(4×0. 8× 3. 75-1. 25× 4× 0. 4) =42. 3×(4×0. 4×2× 3. 75-1. 25×4×0. 4) =42. 3×(4x0. 4x7. 5-1. 25x4x0. 4) =42. 3×[4×0. 4× (7. 5-1. 25) ] =42. 3×[4×0. 4× 6. 25] =42. 3×(4×2. 5) =4237

1. 8+18÷1. 5-0. 5× 0. 3 =1. 8+12-0. 15 =13. 8-0. 15


=13. 65

6. 5×8+3. 5× 8-47 =52+28-47 =80-47

(80-9. 8) ×5 分之 2-1. 32 =70. 2X2/5-1. 32 =28. 08-1. 32 =26. 76

8× 7 分之 4÷[1÷(3. 2-2. 95) ] =8×4/7÷[1÷0. 25] =8×4/7÷4 =8/7

2700×(506499 ÷900=2700× 7÷900 =18900÷900 =21

33. 02-(148. 490. 85 ÷2. 5 =33. 0257. 55÷2. 5 =33. 0223. 02 =10

1÷11 ÷5. 1 =11 ÷5. 1 =0÷5. 1 =0

18. 1+(30. 299÷0. 23 ×1 =18. 11. 7×1 =18. 11. 7 =19. 8

[-18]+29+[-52]+60 = 19

[-3]+[-2] +[-1]+0+1+2 = -3 [-301]+125+301+[-75] = 50 [-1]+[-1/2]+3/4+[-1/4] = -1

[-7/2]+5/6+[-0. 5] +4/5+19/6 = 1. 25 [-26. 54] +[-6. 14]+18. 54+6. 14 = -8 1. 125+[-17/5]+[-1/8]+[-0. 6] = -3 0. 45×2. 51. 1250. 8× 1. 251 0. 3×3. 61. 08 0. 3×0. 30. 09 10×0. 07 0. 7 0. 92×0. 4 0. 368 0. 2×0. 260. 052 0. 14×40. 56 0. 02×0. 10. 002 1. 2×0. 3 0. 36

2. 5×0. 412. 4× 512 0. 22×4 0. 88 3. 25×00

0. 90. 52 0. 38


3. 99×13. 99 0× 3. 52 0 12. 5×8100 8÷10 = 0. 8 10-1. 8-7. 2= 1 0. 43+3. 57= 4 2. 5×4× 12=144

0. 9×0. 8= 0. 727. 5x-3x = 4. 5x a+3a+7a== 11a

1. 05×100= 105 1÷0. 5= 2 0. 96÷3= 0. 32 0. 56×100= 56 3. 78×100= 378 4÷0. 8 =5

3. 215×100= 321. 5 0. 8×10= 8

4. 08×100= 4081. 1×0. 2 =0. 22 0. 6×0. 8 = 0. 48 3× 0. 9= 2. 7 2. 5×0. 4= 1 0. 16×5 0. 8 1. 782. 2 = 3. 98 1. 2×0. 5-0. 4 = 0. 2 0. 7÷0. 01 = 70 2. 5×0. 4 = 1 123. 9= 8. 1


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