21.2*0.36+21.2*0.74 简便计算
问题描述:
21.2*0.36+21.2*0.74 简便计算
答
21.2*0.36+21.2*0.74
=21.2*(0.36+0.74)
=21.2*1.1
=21.2*(1+0.1)
=21.2+2.12
=23.32