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5.31×8.7+53.1×0.13怎么简算?

分类: 作业答案 • 2022-01-02 13:37:33

问题描述：

5.31×8.7+53.1×0.13怎么简算?

答

=5.31x10x8.7x0.1+53.1x0.13
=53.1x0.87+53.1x0.13
=53.1x(0.87+0.13)
=53.1x1
=53.1

答

就相当于5.31乘8.7+5.31乘1.3=5.31*（8.7+1.3）=53.1

答

5.31×8.7+53.1×0.13
=5.31×8.7+5.31×1.3
=5.31×(8.7+1.3)
=5.31×10
=53.1