HK Money (II): $10–$100

1Summary 重點摘要

Notes: $10, $20, $50, $100. Change.

2Vocabulary cards Vocabulary

3Step by step Steps

1. Step 1: Know the notesHong Kong commonly uses $10, $20, $50 and $100 notes. Each note has a different size and colour. Before paying, look carefully at the number on each note and remember how much money it stands for.
2. Step 2: Count the notesTo count notes, add up the value of each one: one $50, one $20 and one $10 make 50 + 20 + 10 = 80, so there is $80 in all. Counting from the largest note to the smallest helps us avoid mistakes.
3. Step 3: Build an amountThe same amount can be paid in different combinations: to pay $70, use one $50 note with one $20 note, or three $20 notes with one $10 note. Look at the notes in hand first, then choose the easiest combination.
4. Step 4: Buy two thingsWhen buying two things, add the two prices first: a book at $35 plus a pen at $15 makes 35 + 15 = 50, so we pay $50 in all. Working out the total before shopping tells us how much money to bring.
5. Step 5: Count the changeWhen we pay more than the price, the shop returns the difference: for goods costing $50 paid with a $100 note, 100 - 50 = 50, so the change is $50. Money paid minus the price gives the amount to get back.
6. Step 6: Check the changeCheck the change by adding: price $50 plus change $50 makes 50 + 50 = 100, exactly the $100 paid, so nothing was counted wrongly. Doing this check yourself makes you a smart shopper.

4Diagrams Diagrams

5Worked example Example

6Common mistakes Mistakes

7Quick check Quick check

8Recap Recap

• Notes: $10, $20, $50, $100.
• Count notes by adding each one.
• Add all prices before paying.
• Change = paid - price.
• Check change with addition.