1,3,5,7,9,...,2021共有1011個(gè)數(shù)，
為奇數(shù)個(gè)，故最后的加減結(jié)果必然是奇數(shù)，
因此最后絕對(duì)值不可能小于1。
可以這樣構(gòu)造（實(shí)際需要去除括號(hào)）：
1+(3-5)-(7-9)+(11-13)" />

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歡迎您訪問(wèn)在13579…2021,之間加上加號(hào)或減號(hào),所得的值的絕對(duì)值最小是多少！

在13579…2021,之間加上加號(hào)或減號(hào),所得的值的絕對(duì)值最小是多少

更新時(shí)間：2021-12-18 03:46:21作者：admin2

絕對(duì)值最小是1。
1,3,5,7,9,...,2021共有1011個(gè)數(shù)，
為奇數(shù)個(gè)，故最后的加減結(jié)果必然是奇數(shù)，
因此最后絕對(duì)值不可能小于1。
可以這樣構(gòu)造（實(shí)際需要去除括號(hào)）：
1+(3-5)-(7-9)+(11-13)-....+(2019-2021)
＝-1

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