2.5乘以0.6减去1.8乘以0.5用简便方法怎么做

2024-11-17 01:56:57
推荐回答(4个)
回答1:

2.5×0.6-1.8×0.5
=0.5×5×0.6-1.8×0.5
=0.5×3-1.8×0.5
=0.5×(3-1.8)
=0.5×1.2
=0.6

回答2:

2.5x0.6-1.8x0.5
=0.5x3-1.8x0.5
=0.5x(3-1.8)
=0.5x1.2
=0.6

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回答3:

0.5*5*0.6-1.8*0.5=0.5*(3-1.8)=0.6

回答4:

我认为计算器足以,如果纯学术研究,这样计算还比较合理