Blog 親李亞爸
Tuesday, January 24, 2012
Maths Exercise 2
現在我想煮雞蛋,打算煮 15 分鐘,我有一個 7 分鐘的沙漏,還有一個 11 分鐘的沙漏,請問我應該如何用這兩個沙漏計時。
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment