mich0301
15 years ago
問題:巴士上有7個女生; 每個女生都有7個背包 每個背包有7隻大貓; 每隻大貓有7隻小貓. 請問巴士上有多少隻腳?
BigBear
15 years ago
7x2 + 7x4 + 7x7x4 = ???
BigBear
15 years ago
14+28+196=238..
BigBear
15 years ago
對嗎~
立即下載
BigBear
15 years ago
還是240 .. 因為 +2 . 司機的腳 (woot)