35乘54+35乘28+82乘65= (要巧算)
问题描述:
35乘54+35乘28+82乘65= (要巧算)
答
35乘54+35乘28+82乘65
=35乘(54+28)+82乘65
=35乘82+82乘65
=82乘(35+65)
=82乘100
=8200