Explaining, convincing and proving

Use your knowledge of place value to try to win this game. How will you maximise your score?

Can you use the clues to complete these 4 by 4 Mathematical Sudokus?

In each of these games, you will need a little bit of luck and your knowledge of place value to develop a winning strategy.

Some of the numbers have fallen off Becky's number line. Can you figure out what they were?

The sum of the numbers inside an envelope is written on the outside. What could the numbers be?

I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?

In this 100 square, what is the sum of the numbers that are diagonally opposite each other?

Can you make doughnuts by matching these fractions, decimals and percentages?

Take three consecutive numbers and add them together. What do you notice?

This cube has ink on each face which leaves marks on paper as it is rolled. Can you work out what is on each face and the route it has taken?