三年级上册乘除法脱式计算30道

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三年级上册乘除法脱式计算30

脱式计算大全及答案30

1.3/7 × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 3/8 ÷6 6.4/7 × 5/9 + 3/7 × 5/9 7.5/2 - 3/2 + 4/5 8.7/8 + 1/8 + 1/9 9.9 × 5/6 + 5/6 10.3/4 × 8/9 - 1/3 11.7 × 5/49 + 3/14 12.6 ×( 1/2 + 2/3 13.8 × 4/5 + 8 × 11/5 14.31 × 5/6 – 5/6 15.9/7 - 2/7 10/21 16.5/9 × 18 – 14 × 2/7 17.4/5 × 25/16 + 2/3 × 3/4 18.14 × 8/7 – 5/6 × 12/15 19.17/32 – 3/4 × 9/24 20.3 × 2/9 + 1/3 21.5/7 × 3/25 + 3/7 22.3/14 ×× 2/3 + 1/6 23.1/5 × 2/3 + 5/6 24.9/22 + 1/11 ÷ 1/2 25.5/3 × 11/5 + 4/3 26.45 × 2/3 + 1/3 × 15 27.7/19 + 12/19 × 5/6 28.1/4 + 3/4 ÷ 2/3 29.8/7 × 21/16 + 1/2 30.101 × 1/5 1/5 × 21

13赞·261浏览2018-03-03

30道拖脱式计算题(带答案)~~~~~

题目如下,不过只有15道题是有答案的。 希望你不是小学生,所以只给一半的答案,嘿嘿 1. 3/7 × 49/9 - 4/3=7/3-4/3=3/3=1 2. 8/9 × 15/36 +

1/27=10/27+1/27=11/27 3. 12× 5/6 2/9 ×3=10-2/3=30/3-2/3=28/3 4. 5/4 + 1/4=10+1/4=40/4+1/4=41/4 5. 6÷ 3/8 – 3/8 ÷6=6*8/3-3/8*1/6=16-1/16=155/16 6. 4/7 × 5/9 + 3/7 × 5/9=1/7*4*5/9+3=1/7*47/9=47/63 7. 5/2 - 3/2 + 4/5 =5/2-3/2-4/5=1-4/5=5/5-4/5=1/5 8. 7/8 + 1/8 + 1/9 )=7/8+1/8+1/9=1+1/9=10/9 9. 9 × 5/6 + 5/6=(9+1*5/6=50/6 10. 3/4 × 8/9 - 1/3=3/4*8/3-1)*1/3=1*1/3=1/3 11. 7 × 5/49 + 3/14=7*5/7+3/2)*1/7=13/14 12. 6 ×( 1/2 + 2/3 )=3+4=7 13. 8 × 4/5 + 8 × 11/5=8*(4/5+11/5=8*3=24 14. 31 × 5/6 – 5/6=31-1*5/6=25 15. 9/7 - 2/7 10/21 =9/7-2/7+10/21=1+10/21=31/21 16. 5/9 × 18 14 × 2/7 17. 4/5 × 25/16 + 2/3 × 3/4 18. 14 × 8/7 – 5/6 × 12/15 19. 17/32 3/4 × 9/24 20. 3 × 2/9 + 1/3 21. 5/7 × 3/25 + 3/7 22. 3/14 ×× 2/3 + 1/6 23. 1/5 × 2/3 + 5/6 24. 9/22 + 1/11 ÷ 1/2 25. 5/3 × 11/5 + 4/3 26. 45 × 2/3 + 1/3 × 15 27. 7/19 + 12/19 × 5/6 28. 1/4 + 3/4 ÷ 2/3 29. 8/7 × 21/16 + 1/2 30. 101 × 1/5 – 1/5 × 21 94赞·7,215浏览2017-11-23 三年级脱式计算题大全800

1、例题:30-192 =30-11 =19 2、例题:(2628)÷9 =54÷9 =6 3例题: 3+2×8 =3+16 =19 4、例题:35×6 =8×6 =48 5、例题:36÷9×6 =4×6 =24 扩展资料: 运算规则: 必须由左到右,且按照“先乘除后加减”的法则运算,同时依次按先算小括号、中括号、大括号里的数。可以运用各种运算法则使其计算更简便与准确 简便脱式计算方法: 1、加法交换律:a+b=b+a 2加法结合律:a+b+c=a+(b+c) 3、乘法交换律:a*b=b*a 参考资料来源:百度百科-脱式计算题

112赞·29,003浏览2020-01-08 脱式计算题50道带答案和过程

1 1.25×(8+10)=1.25×8+1.25×10=10+12.5=22.5 2、1.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78 31/2-(4/5-1/2)=1/2+1/2-4/5=1-4/5=1/5 4


4800÷25÷4=4800÷(25x4)=4800÷100=4800÷100=48 5、2/5-(3/8-3/5)=2/5+3/5-3/8=1-3/8=5/8 63/4-(3/7-1/4)=3/4+1/4-3/7=1-3/7=4/7 73.2x0.125x2.5=0.125x8x(0.4x2.5)=1x1=1 8

0.4×125×25×0.8=(0.4×25)×(125×0.8)=10×100=1000 9、1.25×(8+10)=1.25×8+1.25×10=10+12.5=22.5 10、9123-(123+8.8)=9123-123-8.8=9000-8.8=8991.2 11

1.24×8.3+8.3×1.76=8.3×(1.24+1.76)=8.3×3=24.9 12、

9999×1001=9999×(1000+1)=9999×1000+9999×1=10008999 13、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 14、1.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78 15

933-157-43=933-(157+43)=933-200=733 164821-998=4821-1000+2=3823 1732×125×25=4×8×125×25=(4×25)×(8×125)=100×1000=100000 18、1.8+18÷1.5-0.5×0.3=1.8+12-0.15=13.8-0.15=13.65 19

6.5×8+3.5×8-47=52+28-47=80-47 203.7x2.56-2.3=9.472-2.3=7.172 211.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78 221/2-(4/5-1/2)=1/2+1/2-4/5=1-4/5=1/5 23

4800÷25÷4=4800÷(25x4)=4800÷100=4800÷100=48 24、2/5-(3/8-3/5)=2/5+3/5-3/8=1-3/8=5/8 253/4-(3/7-1/4)=3/4+1/4-3/7=1-3/7=4/7 263.2x0.125x2.5=0.125x8x(0.4x2.5)=1x1=1 27

0.4×125×25×0.8=(0.4×25)×(125×0.8)=10×100=1000 28、1.25×(8+10)=1.25×8+1.25×10=10+12.5=22.5 29、9123-(123+8.8)=9123-123-8.8=9000-8.8=8991.2 30

1.24×8.3+8.3×1.76=8.3×(1.24+1.76)=8.3×3=24.9 31、

9999×1001=9999×(1000+1)=9999×1000+9999×1=10008999 32、

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 33、

1.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78 34

933-157-43=933-(157+43)=933-200=733 354821-998=4821-1000+2=3823 3632×125×25=4×8×125×25=(4×25)×(8×125)=100×1000=100000 37、1.8+18÷1.5-0.5×0.3=1.8+12-0.15=13.8-0.15=13.65 38

6.5×8+3.5×8-47=52+28-47=80-47 393.7x2.56-2.3=9.472-2.3=7.172 401.65×99+1.65 =1.65*(99+1=1.65*100=165 798赞·3,341浏览2018-08-23 脱式计算大全及答案

1. 4×102-2×49 =408-2×49 =408-98 =310 2. 25×(2+4 =25×2+25×4 =50+100 =150 3. 12×5+8 =60+8 =68 4. 99×101 =99×(100+1) =99×100+99×1 =9900+99 =9999 5. 25×(78×4) =25×4×78 =100×78 =7800 6. (2512×4 =25×4+12×4 =100+48 =148 7. 1.4+0.7+8.6 =(1.4+8.6)+0.7 =10+0.7 =10.7 8. 56×27+27×44 =27×(56+44) =27×100 =2700 9. 56×99+56 =56×(99+1) =56×100 =5600 10. 125×25×8×4 =(25×4)×(125×8) =100×1000 =100000 12. 25×125×4 =(25×4)×125 =100×125 =12500 13. 125×47-47×25


=47×(125-25) =47×100 =4700 14. 124×38+65×124+76×110-76×7 =124×(3865)+76×(1107 =124×103+76×103 =103×(12476 =103×200 =20600 15. 233-157-43 =233-(157+43) =233-200 =33 16. 125×32×25 =125×8×4×25 =(125×8)×(4×25) =1000×100 =100000 17. 1.25×(8+10) =125×8+125×10 =1000+1250 =2250 18. 99+99×99 =99×99+1 =99×100 =9900 19.




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