8÷(31.25×0.4)+99.36 怎么简便? 还要分析!
问题描述:
8÷(31.25×0.4)+99.36 怎么简便? 还要分析!
答
8÷(31.25×0.4)+99.36
=8÷12.5+99.36
=8x0.08+99.36
=0.64+99.36
=100
答
8÷(31.25×0.4)+99.36
= 8/(31.25×0.4)+99.36
= 8×8/(31.25×8×0.4)+99.36
= 64/100+99.36
= 0.64+99.36
= 100