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4.5×(0.1+2/15%2/9)(简便计算)

4.5*〔(2.3+1.15)/0.2〕的简便计算 4.5×[(2.3+1.15)/2] =...

20×(0.1+0.05) =20×0.15 =3 20×(0.1+0.05) =20×0....

4.5x[(2.3+1.15)÷0.2]用简便方法方法计算 解:原式=4.5x[3.45÷0.2] ...

5.4×[(1.3+2.15)÷0.5]=37.26。 简便计算过程如下: 5.4×[(1.3+2....

2/5×30+1/6×30-2/15×30

(4.2-4.2/2.1)/0.2 =(4.2-2)/0.2 =2.2/0.2 =22/2 ...

1.5*0.8*1.2+9.02 =1.2*1.2+9.02 =1.44+9.02 =10.4...

194(0.1*2.9+0.1)=194*0.1*(2.9+1)

①2.9+0.46+7.1+0.54=(2.9+7.1)+(0.46+0.54)=10+1=11;②...

原式等于 2.63×(9.9+0.1) =2.63×10 =26.3 所以原式的计算结果为2...

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