能简算的要简算(数学问题，非常简单！)

答案:6 悬赏:80 手机版

解决时间 2021-11-19 01:04

提问者网友：献世佛
2021-11-18 09:21

能简算的要简算(数学问题，非常简单！)

最佳答案

五星知识达人网友：怀裏藏嬌
2021-11-18 09:49

12.5X32X0.25
=12.5X(8X4)X0.25
=(12.5X8 )X(4X0.25)
=100X1
=100

38.5-5.38+61.5-4.62

=( 38.5+61.5)-(5.38+4.62)
= 100-10
= 90

0.75X1.6+1.4X0.75+7.5
= 0.75X1.6+1.4X0.75+0.75X10
= (1.6+1.4+10)X0.75
=13X0.75
=9.75

全部回答

1楼网友：狂恋
2021-11-18 14:46

(1)=12.5X4X8X0.25=50X2=100
(2)=(38.5+61.5)-(5.38+4.62)=100-10=90
(3)=0.75X(1.6+1.4+10)=0.75X13=9.75

2楼网友：一袍清酒付
2021-11-18 13:57

12.5X32X0.25
=12.5X0.25X32
=

38.5-5.38+61.5-4.62
=
=
=

0.75X1.6+1.4X0.75+7.5
=
=
=

3楼网友：污到你湿
2021-11-18 12:33

12.5X32X0.25
=12.5×8×4×0.25
=100×1
=100

38.5-5.38+61.5-4.62
=38.5+61.5-（5.38-4.62）
= 100-10
=90
0.75X1.6+1.4X0.75+7.5
=0.75×（1.6+1.4）+7.5
= 0.75×3+7.5
=9.75

4楼网友：渊鱼
2021-11-18 12:08

12.5X32X0.25
=12.5X4X8X0.25
=(12.5X8)X(4X0.25)
=100X1
=100
38.5-5.38+61.5-4.62

=(38.5+61.5(-(5.38+4.62)
=100-10
=90
0.75X1.6+1.4X0.75+7.5

=(1.6+1.4)X0.75+7.5
=3X0.75+7.5
=2.25+7.5
=9.75

5楼网友：从此江山别
2021-11-18 10:29

12.5X32X0.25
=12.5*8*4*0.25
=100*1
=100

38.5-5.38+61.5-4.62
= 38.5+61.5-5.38-4.62
= (38.5+61.5)-(5.38+4.62)
= 100-10=90

0.75X1.6+1.4X0.75+7.5
= 0.75*(1.6+1.4+1)
= 0.75*4
=3

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