14.72-4.5+5.28怎样简算?
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14.72-4.5+5.28怎样简算?
14.72-4.5+5.28怎样简算?
14.72-4.5+5.28怎样简算?
14.72-4.5+5.28
=14.72+5.28-4.5
=20-4.5
=15.5
14.72-4.5+5.28怎样简算?
14.72-4.5+5.28怎样简算?
14.72-4.5+5.28怎样简算?
14.72-4.5+5.28
=14.72+5.28-4.5
=20-4.5
=15.5