1457-728+43-272
=(1457+43)-(728+272)
=1500-1000
=500
1457-728+43-272怎么簡便計算
1457-728+43-272怎么簡便計算
數(shù)學(xué)人氣：801 ℃時間：2020-06-07 08:39:34
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