【#文档大全网# 导语】以下是®文档大全网的小编为您整理的《80道脱式计算五年级上册带答案》,欢迎阅读!
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. 5+8. 3×3. 7 =(14. 8-6. 5) × 6. 3+8. 3× 3. 7 =8. 3×6. 3+8. 3×3. 7 8. 3×(6. 3+3. 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×(506-499) ÷900=2700× 7÷900 =18900÷900 =21
33. 02-(148. 4-90. 85) ÷2. 5 =33. 02-57. 55÷2. 5 =33. 02-23. 02 =10
(1÷1-1) ÷5. 1 =(1-1) ÷5. 1 =0÷5. 1 =0
18. 1+(3-0. 299÷0. 23) ×1 =18. 1+1. 7×1 =18. 1+1. 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. 5=1. 1250. 8× 1. 25=1 0. 3×3. 6=1. 08 0. 3×0. 3=0. 09 10×0. 07= 0. 7 0. 92×0. 4= 0. 368 0. 2×0. 26=0. 052 0. 14×4=0. 56 0. 02×0. 1=0. 002 1. 2×0. 3= 0. 36
2. 5×0. 4=12. 4× 5=12 0. 22×4= 0. 88 3. 25×0=0
0. 9-0. 52= 0. 38
3. 99×1=3. 99 0× 3. 52= 0 12. 5×8=100 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. 78+2. 2 = 3. 98 1. 2×0. 5-0. 4 = 0. 2 0. 7÷0. 01 = 70 2. 5×0. 4 = 1 12-3. 9= 8. 1
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