4.8乘0.27+0.52乘2.7 简便计算

问题描述:

4.8乘0.27+0.52乘2.7 简便计算

4.8乘0.27+0.52乘2.7
=4.8X0.27+0.52X0.27
=0.27X(4.8+5.2)
=0.27X10
=2.7

=0.48×2.7+0.52×2.7
=(0.48+0.52)×2.7
=1×2.7
=2.7

4.8乘0.27+0.52乘2.7
=4.8X0.27+0.52X0.27X10
=0.27X(4.8+5.2)
=0.27X10
=2.7
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