(0.4+0.8)*0.25*12.5用简便方法计算怎么做
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=(0.25x0.4+0.25x0.8)x12.5
=(0.1+0.2)x12.5
=0.3x12.5
=3.75
咨询记录 · 回答于2021-10-07
(0.4+0.8)*0.25*12.5用简便方法计算怎么做
亲,稍等
=(0.25x0.4+0.25x0.8)x12.5=(0.1+0.2)x12.5=0.3x12.5=3.75