递等式计算(能简算的要简算)52*41+33*41+59*85

问题描述:

递等式计算(能简算的要简算)52*41+33*41+59*85

52*41+33*41+59*85
=41*(52+33)+59*85
=41*85+59*85
=85*(41+59)
=85*100
=8500