Place the numbers 1 to 6 in the circles so that each number is the difference between the two numbers just below it.

Can you arrange fifteen dominoes so that all the touching domino pieces add to 6 and the ends join up? Can you make all the joins add to 7?

Place six toy ladybirds into the box so that there are two ladybirds in every column and every row.

Place the numbers 1 to 10 in the circles so that each number is the difference between the two numbers just below it.

Can you hang weights in the right place to make the equaliser balance?

Use the information about Sally and her brother to find out how many children there are in the Brown family.

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

Make one big triangle so the numbers that touch on the small triangles add to 10. You could use the interactivity to help you.

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

Can you see why 2 by 2 could be 5? Can you predict what 2 by 10 will be?

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?

Have a go at this game which involves throwing two dice and adding their totals. Where should you place your counters to be more likely to win?

In a square in which the houses are evenly spaced, numbers 3 and 10 are opposite each other. What is the smallest and what is the largest possible number of houses in the square?

Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

Try grouping the dominoes in the ways described. Are there any left over each time? Can you explain why?

Make your own double-sided magic square. But can you complete both sides once you've made the pieces?

If you have only four weights, where could you place them in order to balance this equaliser?

Start by putting one million (1 000 000) into the display of your calculator. Can you reduce this to 7 using just the 7 key and add, subtract, multiply, divide and equals as many times as you like?

Throw the dice and decide whether to double or halve the number. Will you be the first to reach the target?

A game for 2 people. Use your skills of addition, subtraction, multiplication and division to blast the asteroids.

Here you see the front and back views of a dodecahedron. Each vertex has been numbered so that the numbers around each pentagonal face add up to 65. Can you find all the missing numbers?

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?

A game for 2 players. Practises subtraction or other maths operations knowledge.

Place the digits 1 to 9 into the circles so that each side of the triangle adds to the same total.

Use the number weights to find different ways of balancing the equaliser.

Can you work out how many flowers there will be on the Amazing Splitting Plant after it has been growing for six weeks?

How could you put eight beanbags in the hoops so that there are four in the blue hoop, five in the red and six in the yellow? Can you find all the ways of doing this?

A game for 2 or more players. Practise your addition and subtraction with the aid of a game board and some dried peas!

Find all the numbers that can be made by adding the dots on two dice.

Find your way through the grid starting at 2 and following these operations. What number do you end on?

A game for 2 people using a pack of cards Turn over 2 cards and try to make an odd number or a multiple of 3.

Leah and Tom each have a number line. Can you work out where their counters will land? What are the secret jumps they make with their counters?

This problem is based on a code using two different prime numbers less than 10. You'll need to multiply them together and shift the alphabet forwards by the result. Can you decipher the code?

Can you make a cycle of pairs that add to make a square number using all the numbers in the box below, once and once only?

Use these head, body and leg pieces to make Robot Monsters which are different heights.

Can you make a train the same length as Laura's but using three differently coloured rods? Is there only one way of doing it?

This challenging activity involves finding different ways to distribute fifteen items among four sets, when the sets must include three, four, five and six items.

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.

Starting with the number 180, take away 9 again and again, joining up the dots as you go. Watch out - don't join all the dots!

Can you find 2 butterflies to go on each flower so that the numbers on each pair of butterflies adds to the same number as the one on the flower?

Can you use the numbers on the dice to reach your end of the number line before your partner beats you?

In this game for two players, the aim is to make a row of four coins which total one dollar.

This challenge is about finding the difference between numbers which have the same tens digit.

Shut the Box game for an adult and child. Can you turn over the cards which match the numbers on the dice?

There are to be 6 homes built on a new development site. They could be semi-detached, detached or terraced houses. How many different combinations of these can you find?

Strike it Out game for an adult and child. Can you stop your partner from being able to go?