36×12÷7-36÷1.4简便怎么计算

问题描述:

36×12÷7-36÷1.4简便怎么计算
1天
1个回答 分类:数学 2014-10-04

问题解答:

我来补答
36×12÷7-36÷1.4
=36×12÷7-36÷7÷0.2
=36×12÷7-36×5÷7
=36÷7×(12-5)
=36÷7×7
=36×1
=36
 
 
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