### Two Dice

Find all the numbers that can be made by adding the dots on two dice.

### Biscuit Decorations

Andrew decorated 20 biscuits to take to a party. He lined them up and put icing on every second biscuit and different decorations on other biscuits. How many biscuits weren't decorated?

### Writing Digits

Lee was writing all the counting numbers from 1 to 20. She stopped for a rest after writing seventeen digits. What was the last number she wrote?

# Find the Difference

##### Stage: 1 Challenge Level:

Place the numbers $1$ to $6$ in the circles so that each number is the difference between the two numbers just below it.

Example:   $5 - 2 = 3$

You could try it in this interactivity.

When you have tried this and got more than one answer you could try other things like having $4$ rows of discs and use the number $1$ to $10$

Here is an alternative Flash interactive.
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