计算:68×0.11+8.9×6.8

问题描述:

我不会做的?

四年级 1个回答 分类:数学 2020-07-15

问题解答:

我来补答

解法一:

68×0.11+8.9×6.8

=6.8×1.1+8.9×6.8

=6.8×(1.1+8.9)

=6.8×10

=68

 

解法二:

68×0.11+8.9×6.8

=68×0.11+0.89×(10×6.8)

=68×0.11+0.89×68

=68×(0.11+0.89)

=68×1

=68

 
 
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