2.5乘3.7加6.3加2.5等于多少(要简便计算)急急急
人气：194 ℃ 时间：2020-06-03 09:09:02
解答
2.5x3.7+6.3x2.5
=2.5x(3.7+6.3)
=2.5x10
=25
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