72×209-1.8×73.6的简便计算
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72×209-1.8×73.6的简便计算72×209-1.8×73.6的简便计算72×209-1.8×73.6的简便计算72*2.09-1.8*73.6=1.8*40*2.09-1.8*73.6=1.
72×209-1.8×73.6的简便计算
72×209-1.8×73.6的简便计算
72×209-1.8×73.6的简便计算
72*2.09-1.8*73.6
=1.8*40*2.09-1.8*73.6
=1.8*(40*2.09-73.6)
=1.8*(83.6-73.6)
=1.8*10
=18
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72*2.09-1.8*73.6
=1.8*40*2.09-1.8*73.6
=1.8*(40*2.09-73.6)
=1.8*(83.6-73.6)
=1.8*10
=18
勇于改变的味道
回答的非常到位了。