Question

54x23十46X45十28X56简便运算方法？

Answer 1

54x23十46X45十28X56
=54x23十23x2X45十23x56+5x56
=23x（54+90+56）+280
=23x200+280
=4600+280
=4880
以上就是简便计算过程。

Answer 2

54×23+46×45+28×56
=54×23+23×90+23×56+5×56
=(54+90+56)×23+5×56
=200×23+5×56
=4600+280
=4880