21. In a triangle with angles x, y and z, the mean of x and y is equal to z. What is the value of z?

3. A school bus scheduled for 15:45 leaves 19 minutes late. What time does it leave?

7. What is 23 tenths written as a decimal?

6. A square has a perimeter of 36 cm. What is its area?

11. What is the product of 12 and 13?

22. What is the result of 63 minus 24?

10. How many total hours are there in the months of April, June, and November?

14. A large pizza for 4 people uses 75g of cheese. How many grams of cheese are needed to serve 16 people?

19. A container weighs 8 kg when full of ice cream and 4.5 kg when half the ice cream has been eaten. What is the mass of the container when only a quarter of the ice cream remains?

13. If you roll two fair six-sided dice, which total — 3, 7, or 12 — is least likely to occur?

8. Which pair of numbers multiply together to make 72?

9. Each class has 21 children. How many 7-a-side teams can be formed from 4 such classes?

4. You spend £12.87 in a shop and pay with a £20 note. How much change should you receive?