17.2*0.5+0.5/0.2的简算
问题描述:
17.2*0.5+0.5/0.2的简算
答
17.2×0.5+0.5/0.2
=0.5×17.2+0.5×5
=0.5×(17.2+5)
=0.5×22.2
=11.1