填數字 - 拼圖

By Lucy
at 2009-07-07T10:45
at 2009-07-07T10:45
Table of Contents
□ □ □
________ - ________ + ________ = 0
□ □ □ □ □ □
□ □ □ □
________ - ________ + _________ = 0
□ □ □ □ □
上列兩式中,請在□中填入1~9的數字,使算式成立
每個式子中1~9數字只能用一次。且每個分數必須為最簡分數,不可再約分。
且不能為假分數
例如
7 3 4
________ - ________ + _________ = 0 雖然1~9只用一次,且算式成立
98 21 56
但不是最簡分數,故為不合法的答案。
5 29 7
________ - ________ + _________ = 0 有假分數,也是不合法的答案。
3 16 48
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拼圖
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