Writing Digits

Lee was writing all the counting numbers from 1 to 20. She stopped for a rest after writing seventeen digits. What was the last number she wrote?

Number Detective

Follow the clues to find the mystery number.

Six Is the Sum

What do the digits in the number fifteen add up to? How many other numbers have digits with the same total but no zeros?

That Number Square!

Age 5 to 11Challenge Level

When you arrive in the classroom on Monday morning you discover all the numbers have fallen off the class number square and they are in a heap on the floor. All that is left on the wall is a blank grid!

There's five minutes to go before the lesson starts and you need the number square.

Can you find a quick way of putting the numbers back in their right places on the grid?

Where will you start?

Before you start think - does your class number square start with $0$ or $1$? Or a different number?

Some of your friends may want to have a go too.

What different ideas are there about how to put the number tiles back as quickly as possible?