99×9.125+5×0.9125+0.05×91.25
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计算时把0.9125=91.25×0.019.125=91.25×0.1
咨询记录 · 回答于2023-01-06
99×9.125+5×0.9125+0.05×91.25
亲亲,这道题解题过程如下,99×9.125+5×0.9125+0.05×91.25=99×0.1×91.25+5×0.01×91.25+0.05×91.25=91.25×(99×0.1+5×0.01+0.05)=91.25×(9.9+0.05+0.05)=91.25×10=912.5
谢谢
计算时把0.9125=91.25×0.019.125=91.25×0.1
这样就有了公因式就是91.25