1.6×(-4/5)×(-2.5)×(-3/8)
=[1.6×(-3/8)]×[(-4/5)×(-2.5)]
=(-0.6)×2
=-1.2
1.6×(-4/5)×(-2.5)×(-3/8)用简便方法计算
1.6×(-4/5)×(-2.5)×(-3/8)用简便方法计算
数学人气:642 ℃时间:2019-11-09 12:08:45
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