**ABOVE IS A NUMBER CHAIN**

**How was is created?**

• Finish the chain? When does it stop?

• Investigate with other numbers as the starting point. What do you notice?

1. If the number is even, divide by 2

2. If a number is odd, multiply by 3 and add 1

• With large numbers use a calculator.

• What happens if you change the rules:

e.g. Change rule 2 to read : If a number is odd multiply it by 3 and subtract 1

• Make a report about your investigations and share it with your friends.

• Make a report about your investigations and share it with your friends.

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