314×0.043+3.14×7.2×7.2 简便运算
问题描述:
314×0.043+3.14×7.2×7.2 简便运算
答
=314*0.043+314*7.2*7.2*0.01
=314*(0.043+0.5184)
=314*0.5614
=176.2796