简算 0.625×8.5+八分之五+二分之一×62.5%
人气:192 ℃ 时间:2020-05-03 03:16:47
解答
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
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