Welcome to the World of Money!

Hello, young explorers! Today, we are going on a treasure hunt to learn all about the money we use every day in Hong Kong. Have you ever gone to a bakery to buy a pineapple bun or a candy shop for a treat? To do that, we need to know our coins!

Learning about money is like learning a secret code that helps you buy things you want and need. Don't worry if it seems a bit confusing at first—by the end of these notes, you'll be a "Coin Master"!


1. Meet the Hong Kong Coins

In Hong Kong, we use different coins. They have different sizes, colors, and even shapes! We can split them into two main families: the Cents family and the Dollars family.

The "Cents" Family (The Bronze Coins)

These coins are smaller in value. They are usually orange or bronze in color.

  • 10-cent (10c): The smallest coin. It has a wavy edge!
  • 20-cent (20c): Also has a wavy edge, but it is a bit bigger than the 10-cent coin.
  • 50-cent (50c): The biggest of the bronze coins. It is round and smooth.

The "Dollars" Family (The Silver and Gold Coins)

These coins are worth more than cents.

  • 1-dollar (\( \$1 \)): A silver-colored, thin, round coin.
  • 2-dollar (\( \$2 \)): A silver-colored coin with a special scalloped edge (it looks like a flower!).
  • 5-dollar (\( \$5 \)): A silver-colored, very thick, round coin. It feels heavy!
  • 10-dollar (\( \$10 \)): The most special one! It has two colors—a silver circle in the middle and a gold ring on the outside.

Quick Review: Which coin has two colors? That’s right, it’s the 10-dollar coin!

Did you know? On one side of every Hong Kong coin, you can see a beautiful Bauhinia flower. This is the floral emblem of Hong Kong!


2. Reading Price Tags

When you see a price tag on a toy or a snack, it uses a special mark: \( \$ \). This is the dollar sign.

In Primary 1, we look at prices that are not more than 10 dollars. Here is how we read them:

  • \( \$3.00 \) is read as three dollars.
  • \( \$2.50 \) is read as two dollars and fifty cents.
  • \( \$8.20 \) is read as eight dollars and twenty cents.

How to read price tags step-by-step:

1. Look at the number before the dot (.). This is the dollars part.
2. Look at the number after the dot (.). This is the cents part.
3. Put them together with the word "and"!

Example: If a pencil costs \( \$4.10 \), you say "four dollars and ten cents."

Common Mistake: Sometimes students forget to say "cents" for the second number. Remember, the big number is for dollars, and the small number is for cents!


3. Counting Your Coins

When you have a pile of coins, you need to count them to find the total amount. For now, we only count up to \( \$10 \).

A simple trick for counting:

Always start counting from the biggest value first! It makes things much easier. Let's try it:

If you have: One \( \$5 \) coin, one \( \$2 \) coin, and one \( \$1 \) coin.
Count like this: 5... 7... 8! The total is 8 dollars.

Don't worry if this seems tricky! Just practice counting by 2s and 5s, and you will be a pro in no time.


4. The Money Exchange Game

Sometimes, we can swap many small coins for one big coin. This is called exchange. The total value stays the same, but you have fewer coins to carry!

Cents Exchange

We can swap 10-cent, 20-cent, and 50-cent coins to get a 1-dollar coin.

  • Two 50-cent coins = \( \$1 \)
  • Five 20-cent coins = \( \$1 \)
  • Ten 10-cent coins = \( \$1 \)

Dollars Exchange

We can also swap smaller dollar coins for bigger ones!

  • Two \( \$5 \) coins = one \( \$10 \) coin
  • Five \( \$2 \) coins = one \( \$10 \) coin
  • Ten \( \$1 \) coins = one \( \$10 \) coin

Analogy: Think of exchange like building with blocks. You can use 10 small blocks to make one big tower. The "amount" of blocks is the same, it just looks different!

Key Takeaway: Exchange means swapping coins for the same value. For example, if you give someone ten \( \$1 \) coins and they give you one \( \$10 \) coin, nobody loses any money!


Summary Checklist

Before you finish, check if you can do these things:

  • Can you find the Bauhinia flower on a coin?
  • Do you know which coins have wavy or scalloped edges?
  • Can you read \( \$6.50 \) out loud? (Six dollars and fifty cents!)
  • Do you know how many 50-cent coins make 1 dollar? (Two!)

Great job! You are now ready to handle coins in Hong Kong. Keep practicing whenever you go shopping with your parents!