## Here a number puzzle that can be made as easy or as difficult as you wish.

You only need a piece of paper and a pen.

On a piece of paper draw five boxes so they from an 'L' shape, like this:

Now, can you put the numbers 0, 1, 2, 3 and 4 in the boxes so that the total going down the 'L' is the same as the total going across?

**Try it for yourself ****before looking at this solution**

There's more than one way of doing this. Draw more 'L' shapes and see if you can find another way.

Can you find **eight **different ways?

What do you notice?

Next, try it with different numbers.

What happens if you use these numbers:

0, 3, 6, 9, 12

7, 8, 9, 10, 11

5, 9, 13, 17, 21

Choose some of your own numbers.

Finally, try it with a larger 'L' shape. Can you make one with 4 squares on each side?

What numbers would you choose to write in this new puzzle?

How many different ways can you place the numbers in this puzzle?