752乘1.25加4.45乘12.5加0.035乘125用乘方运算定律怎么计算
问题描述:
752乘1.25加4.45乘12.5加0.035乘125用乘方运算定律怎么计算
答
反过来用乘法分配律
=752×1.25+44.5×1.25+3.5×1.25
=(752+44.5+3.5)×1.25
=800×1.25
=1000