简算 0.625×8.5+八分之五+二分之一×62.5%

问题描述:

简算 0.625×8.5+八分之五+二分之一×62.5%

0.625×8.5+八分之五+二分之一×62.5%
=0.625×8.5+0.625+0.5×0.625
=0.625×(8.5+1+0.5)
=0.625×10
=6.25