用简便方法计算2.6×125+12.5×74
问题描述:
用简便方法计算2.6×125+12.5×74
答
简单运算法:提取公因数
2.6×125+12.5×74
=12.5*(2.6*10+74)
==12.5*(26+74)
=12.5*100
=1250