Mental calculations

Can you work out which drink has the stronger flavour?

Choose a symbol to put into the number sentence.

Mathematicians are always looking for efficient methods for solving problems. How efficient can you be?

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

In this twist on the well-known Countdown numbers game, use your knowledge of Powers and Roots to make a target.

This Sudoku combines all four arithmetic operations.

Place the numbers 1 to 6 in the circles so that each number is the difference between the two numbers just below it.

Here's a chance to work with large numbers...

These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?

A resource to try once children are familiar with number lines, and they have begun to use them for addition. It could be a good way to talk about subtraction. Leah and Tom each have a number line. Can you work out where their counters will land?