1.25*67.875+1250*0.032125 简便计算
问题描述:
1.25*67.875+1250*0.032125 简便计算
答
1.25*67.875+1250*0.032125
=1.25*67.875+1.25*32.125
=1.25*(67.875+32.125)
=1.25*100
=125
答
1.25扩大1000倍,67.875缩小1000倍,然后用乘法分配率
答
1.25*67.875+1.25*32.125
=1.25*(67.875+32.125)
=1.25*100
=125