456×26-56×26和68×92+32×92怎么巧算

题目

456×26-56×26和68×92+32×92怎么巧算

答案

456×26-56×26
=（456-56）×26
=400×26
=10400
68×92+32×92
=（68+32）×92
=100×92
=9200
就是考了乘法对加减法的分配率.