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
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