27乘以3.4加15.4乘以34减340乘以百分之81
=27x3.4+154x3.4-3.4x81
=3.4x(27+154-81)
=3.4x100
=340
27乘以3.4加15.4乘以34减340乘以百分之81,怎么简算.
27乘以3.4加15.4乘以34减340乘以百分之81,怎么简算.
数学人气:850 ℃时间:2020-02-04 11:01:34
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