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1.2÷0.25怎样写简便计算

1.2÷0.25 =(1.2×4)÷(0.25×4) =4.8÷1 =4.8

2.1÷0.25=8.4 ~回答完毕~ ~\(^o^)/~祝学习进步~~~

3.2÷0.25=(3.2×4)÷(0.25×4)=12.8÷1=12.8

=2.1÷(0.25x4) =2.1÷1 =2.1

简便算法如下: 方法1: (7.1*4)÷(0.25*4)=28.4÷1=28.4 方法2: 710/25=28.4 简便算法的公式: 1/[n*(n+1)*(n+2)]=(1/n*(n+1)-1/(n+1)(n+2)]/2 1/ (n*(n+1)) = 1/n - 1/(n+1) 涉及简便算法的题目: 1/1×2+1/2×3+1/3×4+····+1/2005×2006 解:...

27÷0.25=27×4÷(0.25×4)=108÷1 =108

13.75÷0.25-2.75的简便计算怎么写 13.75÷0.25-2.75 =55-2.75 =52.25 直接计算

1.2÷0.25+1.3×4 =1.2×4+1.3×4 =(1.2+1.3)×4 =2.5×4 =10

先彩钠如何,我帮你解提这边谢谢。

1÷0.125+2÷0.25+3÷0.5 =1÷1/8+2÷1/4+3÷1/2 =1×8+2×4+3×2 =8+8+6 =22

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