9.9*12.6的简便计算
问题描述:
9.9*12.6的简便计算
答
9.9*12.6
=10*12.6-0.1*12.6
=126-1.26
=125.74
9.9*12.6的简便计算
9.9*12.6
=10*12.6-0.1*12.6
=126-1.26
=125.74