Use five steps to count forwards or backwards in 1s or 10s to get to 50. What strategies did you use?

Andrew decorated 20 biscuits to take to a party. He lined them up and put icing on every second biscuit and different decorations on other biscuits. How many biscuits weren't decorated?

Choose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.

On a farm there were some hens and sheep. Altogether there were 8 heads and 22 feet. How many hens were there?

If there are 3 squares in the ring, can you place three different numbers in them so that their differences are odd? Try with different numbers of squares around the ring. What do you notice?

As you come down the ladders of the Tall Tower you collect useful spells. Which way should you go to collect the most spells?

Dotty Six is a simple dice game that you can adapt in many ways.

Use your logical reasoning to work out how many cows and how many sheep there are in each field.

Who said that adding, subtracting, multiplying and dividing couldn't be fun?

Can you put the numbers 1-5 in the V shape so that both 'arms' have the same total?

Place the numbers from 1 to 9 in the squares below so that the difference between joined squares is odd. How many different ways can you do this?

These eleven shapes each stand for a different number. Can you use the multiplication sums to work out what they are?

In this game for two players, the idea is to take it in turns to choose 1, 3, 5 or 7. The winner is the first to make the total 37.

Sally and Ben were drawing shapes in chalk on the school playground. Can you work out what shapes each of them drew using the clues?

Can you fill in this table square? The numbers 2 -12 were used to generate it with just one number used twice.

This challenge is a game for two players. Choose two of the numbers to multiply or divide, then mark your answer on the number line. Can you get four in a row?

There are nasty versions of this dice game but we'll start with the nice ones...

The idea of this game is to add or subtract the two numbers on the dice and cover the result on the grid, trying to get a line of three. Are there some numbers that are good to aim for?

A game that tests your understanding of remainders.

Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.

Four bags contain a large number of 1s, 3s, 5s and 7s. Pick any ten numbers from the bags above so that their total is 37.

How many solutions can you find to this sum? Each of the different letters stands for a different number.