Reasoning about addition and subtraction

Three darts to score on the board. Good adding up revision.

Can you put the numbers in the circles so that each side of the triangle adds up to 9?

Sharks know that there's more than one way to catch a fish. And there's usually lots of ways to make a total by adding two numbers.

Put the numbers 1, 2, 3, 4 and 5 onto the grid so that both lines add up to the same total. How many ways?

A first look at word problems needing addition or subtraction to solve.

How many different answers can you get?

Completing missing symbols in number sentences.

Completing simple number patterns.