Estimating and approximating

Which two items of fruit could Kate and Sam choose? Can you order the prices from lowest to highest?

Try some throwing activities and see whether you can throw something as far as the Olympic hammer or discus throwers.

Have you ever wondered what it would be like to race against Usain Bolt?

This activity challenges you to decide on the 'best' number to use in each statement. You may need to do some estimating, some calculating and some research.