7.14×0.68+71.4×0.032简便计算?
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亲亲您好吖7.14×0.68+71.4×0.032=7.14×0.68+(71.4÷10)×(0.032×10)=7.14×0.68+7.14×0.32=7.14×(0.68+0.32)=7.14×1=7.14
咨询记录 · 回答于2022-11-03
7.14×0.68+71.4×0.032简便计算?
亲亲您好吖7.14×0.68+71.4×0.032=7.14×0.68+(71.4÷10)×(0.032×10)=7.14×0.68+7.14×0.32=7.14×(0.68+0.32)=7.14×1=7.14
25.5除1.5乘0.5
亲亲您好吖25.5÷1.5×0.5=17×0.5=8.5