简便计算:44×2.5怎么算
问题描述:
简便计算:44×2.5怎么算
答
44×2.5
=44×10/4
=11×10
=110
答
44x2.5=44x(2+0.5)=44x2+44x0.5=88+22=110
答
=(40+4)X2.5
=40X2.5+4X2.5
=100+10
=110