Comparing and ordering numbers

problem

Move a Match

Age

7 to 11

Challenge level

2 out of 3

How can you arrange these 10 matches in four piles so that when you move one match from three of the piles into the fourth, you end up with the same arrangement?
problem

Rachel's Problem

Age

14 to 16

Challenge level

3 out of 3

Is it true that $99^n$ has 2n digits and $999^n$ has 3n digits? Investigate!
problem

Fair Exchange

Age

5 to 7

Challenge level

1 out of 3

In your bank, you have three types of coins. The number of spots shows how much they are worth. Can you choose coins to exchange with the groups given to make the same total?
problem

Matching Numbers for Two

Age

5 to 7

Challenge level

1 out of 3

Matching Numbers game for an adult and child. Can you remember where the cards are so you can choose two which match?
problem

Unexpected Ordering

Age

5 to 7

Challenge level

1 out of 3

Watch the video of Fran re-ordering these number cards. What do you notice? Try it for yourself. What happens?
problem

Who Can Be the Winner?

Age

5 to 7

Challenge level

2 out of 3

Some children have been doing different tasks. Can you see who was the winner?
problem

Here to There 1 2 3

Age

5 to 7

Challenge level

3 out of 3

Move from the START to the FINISH by moving across or down to the next square. Can you find a route to make these totals?
problem

Twizzle's Journey

Age

5 to 7

Challenge level

3 out of 3

Twizzle, a female giraffe, needs transporting to another zoo. Which route will give the fastest journey?
game

Up and Down Donkey

Age

5 to 11

Challenge level

1 out of 3

A number card game for 2-6 players.
problem

Street Sequences

Age

5 to 11

Challenge level

1 out of 3

Investigate what happens when you add house numbers along a street in different ways.