【醫生爸爸數學課】買賣百分比 percentages

My daughter does not understand profit, loss, cost, selling price, marked price, discount , % profit, % loss, % discount and their relationships.

So I play a game with her.

醫生爸爸數學課

1. [醫生爸爸數學課] 數學考試錦囊
2. [醫生爸爸數學課] 因數攻略
3. [醫生爸爸數學課] 分數、小數點和百分比
4. [醫生爸爸數學課] 買賣百分比 percentages
5. E週刊專欄 - 怎樣令人失去學習興趣
6. 我也愛數學

陳沛然醫生爸爸敬上