1.2345+2.3451+3.4512+4.5123+5.1234=?

ygtrd2022-10-04 11:39:541条回答

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wengqing25775 共回答了14个问题 | 采纳率85.7%
每个数位上的和都是15,
所以总和为15×1.1111=11.111+5.5555=16.6665.
1年前

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简便运算:1.2345+2.3451+3.4512+4.5123+5.1234=
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1.2345+2.3451+3.4512+4.5123+5.1234
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1.2345+2.3451+3.4512+4.5123+5.1234
= (1+2+3+4+5) × 1.1111
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