用2,5,7,9算出61(四則與指數皆可)數字不可重複?
回答 (2)
2016-08-15 2:53 pm
2 × 5 × 7 - 9
= 10 × 7 - 9
= 70 - 9
= 61
= 10 × 7 - 9
= 70 - 9
= 61
2016-11-08 2:09 am
7^2+9+5-2=61
收錄日期: 2021-04-18 15:28:23
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160815042148AATj0hi