63*1030-630*3简便计算
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![63*1030-630*3简便计算](/uploads/image/z/1073203-43-3.jpg?t=63%2A1030-630%2A3%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97)
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63*1030-630*3简便计算
63*1030-630*3简便计算
63*1030-630*3简便计算
63*1030-630*3
=63*1030-63*30
=63*(1030-30)
=63*1000
=63000
63*1030-630*3
=630(103-3)
=63000