We are trying to work systematically in maths this week.

Here are some pictures of us solving a problem. We had to find EVERY way to make the total of 12 by adding three numbers between 0 and 9. We couldn’t use two of the same number, or simply put the numbers in the wrong order. We set our number sentences out like this:

0+9+3=12

We did it eventually as a class. Some pairs of children did it by themselves too! The children who solved the problem worked SYSTEMATICALLY, making sure that they checked their work carefully.

Can you solve this problem systematically? Leave your answers as comments.

You have these coins:

How many totals can you make? Here is a start:

1p=1p

1p+2p=3p

1p+5p=6p

You can use all four coins, but only once for each number sentence. Don’t try swapping the coins round either – that’s cheating!

Good luck.