问题标题:
简便方法计算:7/16×9-7/16×7
问题描述:
简便方法计算:7/16×9-7/16×7
马德岩回答:
:7/16×9-7/16×7
=:7/16×(9-7)
=7/8
方同秀回答:
那95.6×8+0.4÷0.125呢?
马德岩回答:
95.6×8+0.4÷0.125=95.6×8+0.4*8=8*(95.6+0.4)=8*96=768
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