Place the numbers from 1 to 9 in the squares so that the difference between joined squares is odd.

This problem is designed to help children to learn, and to use, the two and three times tables.

We can arrange dots in a similar way to the 5 on a dice. What do you notice?

Lola bought a balloon at the circus using six coins. What could Lola have paid for the balloon?

Put operations signs between the numbers 3, 4, 5 and 6. What answers can you make?

Zias have 3 legs and Zepts have 7 legs. If there were 52 legs, how many of each were there?

Abundant numbers are less than the sum of their factors (excluding themselves). Can you find some?

Can you discover the value of the circle in each problem?

Can you put the numbers 1 to 8 into the circles so that the four calculations are correct?

A Deca Tree has 10 trunks, and on each trunk are 10 branches, and on each branch are 10 twigs...

Can you find out where all the numbers on this clock face are using the ten statements?

These rows of children are holding cards with numbers on them. Can you work out the missing numbers?

Can you add or subtract the two numbers on the spinners to complete a row of three?

In this game, you can add, subtract, multiply or divide the numbers on the dice. Which will you choose?

What numbers would you put on this number line as it goes under the sea level?

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

Will you play the nice or the nasty version of this dice game?

Choose a symbol to put into the number sentence.

This group activity will encourage you to compare different calculation strategies.

Working in a group, use the cards to gather all the information you need to organise the school trip.

What happens when you add the digits of a number then multiply the result by 2?

Use the maps to work out the number of points each route through Numberland scores.

Can you use the information to find out which cards I have used?

In this game the winner is the first to make the total 37. Is this a fair game?

Roll three dice, then add two numbers and take away the other. What answers could you get?

Can you go through this maze so that the numbers you pass add to exactly 100?

Use the 'double-3 down' dominoes to make a square so that each side has eight dots.

Find at least one way to put in some operation signs to make these digits come to 100.

Amy has a box of domino pieces. Which of her domino pieces are missing?

Arrange cards numbered 1 to 20 into 6 piles. Can each pile add to the same total?

Can you work out which three numbers were pinned onto these children's backs?

Can you use four digits to make four two-digit numbers that add to 100?

Can you make square numbers by adding two prime numbers together?

Use your logical thinking skills to deduce how much Dan's crisps and ice cream cost altogether.

A group of children are using measuring cylinders but they lose the labels. Can you help relabel them?

How many people and rats could there be if you know how many legs there are altogether?

Can you find all the ways to get 15 at the top of this triangle of added numbers?

This challenge combines addition, multiplication, perseverance and even proof.

This task combines spatial awareness with addition and multiplication.

Try out this number trick. What happens with different starting numbers? What do you notice?

Use these four dominoes to make a square that has the same number of dots on each side.

Use 4 four times in a calculation. What answers can you get?

What can you discover about adding and subtracting sets of consecutive numbers?

By choosing to add numbers from 1-4, can you hit the target number in this game?

Try out these calculations. Are you surprised by the results?

Can you use the clues to complete these 4 by 4 Mathematical Sudokus?

The sum of the numbers inside an envelope is written on the outside. What could the numbers be?

In this 100 square, what is the sum of the numbers that are diagonally opposite each other?

Take three consecutive numbers and add them together. What do you notice?