101X62.5-1.25X6.25X8
=
101X62.5-1.25X8X6.25
=101X62.5-10X6.25
=101X62.5-62.5
=(101-1)X62.5
=100X62.5
=6250
101X62.5-1.25X6.25X8怎样简便计算过程
2个回答
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