5/12×1.17-5/12×0.17的简便方法
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5/12×1.17-5/12×0.17=5/12×(1.17-0.17)=5/12×1=5/12
咨询记录 · 回答于2022-10-04
5/12×1.17-5/12×0.17的简便方法
5/12×1.17-5/12×0.17=5/12×(1.17-0.17)=5/12×1=5/12
5/12×1.17-5/12×0.17的简便方法,就是把公因式5/12提出来
然后利用1.17和0.17相减得整数1的方法快速算出