Addition and subtraction

Using the cards 2, 4, 6, 8, +, - and =, what number statements can you make?

At the beginning of May, Tom put his tomato plant outside. On the same day he sowed a bean in another pot. When will the two be the same height?

Use the information about Sally and her brother to find out how many children there are in the Brown family.

Are these statements relating to odd and even numbers always true, sometimes true or never true?

Find a great variety of ways of asking questions which make 8.

This is an adding game for two players. Can you be the first to reach the target?

Place the numbers from 1 to 9 in the squares below so that the difference between joined squares is odd. How many different ways can you do this?

Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

Dotty Six is a simple dice game that you can adapt in many ways.

In these addition games, you'll need to think strategically to get closest to the target.