
2.7x0.043+0.27x0.72-0.027x1.5乘10一或除10的简便方法?
展开全部
2.7*0.063+0.27*0.72-0.027*1.5
=2.7*(0.063+0.072-0.015) 乘法分配律简便算法
=2.7*0.12
=2.7*(0.1+0.02)乘法分配律
=2.7*0.1+ 2.7*0.02
=0.27+0.054
=0.324
=2.7*(0.063+0.072-0.015) 乘法分配律简便算法
=2.7*0.12
=2.7*(0.1+0.02)乘法分配律
=2.7*0.1+ 2.7*0.02
=0.27+0.054
=0.324
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