题目内容
560×
+6×23.65+
×60%
解:560×
+6×23.65+
×60%,
=560×0.6+0.6×236.5+3.5×0.6,
=(560+236.5+3.5)×0.6,
=800×0.6,
=480.
分析:把分数和百分数化为小数,原式变为560×0.6+0.6×236.5+3.5×0.6,运用乘法分配律简算.
点评:此题解答的关键是通过数字转化,运用所学定律,灵活简算.
=560×0.6+0.6×236.5+3.5×0.6,
=(560+236.5+3.5)×0.6,
=800×0.6,
=480.
分析:把分数和百分数化为小数,原式变为560×0.6+0.6×236.5+3.5×0.6,运用乘法分配律简算.
点评:此题解答的关键是通过数字转化,运用所学定律,灵活简算.
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