5.9+8.99+12.999+0.111巧算
2022-06-15 14次 反馈错误 加入收藏 正确率 : 100%
题目内容:
5.9+ 8.99 +12.999+ 0.111巧算
优质解答
5.9+ 8.99 +12.999+ 0.111
=5.9+ 8.99 +12.999+0.1+0.01+0.001
=5.9+0.1+8.99+0.01+12.999+0.001
=(5.9+0.1)+(8.99+0.01)+(12.999+0.001)
=6+9+13
=15+13
=28
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