Addition and subtraction

Choose a symbol to put into the number sentence.

This group activity will encourage you to share calculation strategies and to think about which strategy might be the most efficient.

You are organising a school trip and you need to write a letter to parents to let them know about the day. Use the cards to gather all the information you need.

What happens when you add the digits of a number then multiply the result by 2 and you keep doing this? You could try for different numbers and different rules.

Tom and Ben visited Numberland. Use the maps to work out the number of points each of their routes scores.

Can you use the information to find out which cards I have used?

In this game the winner is the first to make the total 37. Is this a fair game?

Roll two red dice and a green dice. Add the two numbers on the red dice and take away the number on the green. What are all the different possible answers?

Can you go through this maze so that the numbers you pass add to exactly 100?

Use the 'double-3 down' dominoes to make a square so that each side has eight dots.