6.25-40/16*2.5简算
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6.25-40/16*2.5简算
6.25-40/16*2.5
=6.25-40/[4*(4*2.5)]
=6.25-40/(4*10)
=6.25-40/40
=6.25-1
=5.25
=6.25-40/[4*(4*2.5)]
=6.25-40/(4*10)
=6.25-40/40
=6.25-1
=5.25
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