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一天,爸爸给我出了一道题目:“第一行有5颗星,第二行也有5颗星,如果要使两行相差4颗星,应该怎么移动呢?”第一行:★★★★★第二行:★★★★★我飞快地回答:“移动4颗星。”爸爸没出声,一个劲儿地瞅着我,好像在说:“不对,再好好想一想。”我拿出学具盒里的小棒做实验,如果从第一行移动1颗星到第二行,那么,第一行剩下4颗星,第二行有6颗星,两行相差2颗星;如果从第一行移动2颗星到第二行,那么,第一行剩下3颗星,第二行有7颗星,两行相差4颗星。
One day, my father gave me a question: “There are 5 stars in the first line and 5 stars in the second line. If you want to make the difference between the two lines be 4 stars, how should you move?” “The first line: ★ ★★★★ The second line: ★★★★★ I quickly replied: ”Move 4 stars.“ ”Father did not say anything, looked at me strenuously, as if to say: “ No, no matter how good Think about it. ”" I took a small stick from a school box and experimented. If I moved a star from the first row to the second row, then the remaining four stars in the first row and six in the second row If you move 2 stars from the first line to the second line, there are 3 stars left in the first line, 7 stars in the second line and 4 stars in the second line.