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问题: 小数简算

7.25x67.875+725x0.7875+7250x0.053375
简便运算是什么(怎么做)

解答:

7.25x67.875+725x0.7875+7250x0.053375
=7.25*67.875+7.25*78.75+7.25*53.375
=7.25*(67.875+78.75+53.375)
=7.25*200
=1450