How many times in twelve hours do the hands of a clock form a right angle? Use the interactivity to check your answers.

This is a game for two players. Can you find out how to be the first to get to 12 o'clock?

Stop the Clock game for an adult and child. How can you make sure you always win this game?

Can you create a story that would describe the movement of the man shown on these graphs? Use the interactivity to try out our ideas.

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

Use the interactivity to move Mr Pearson and his dog. Can you move him so that the graph shows a curve?

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

Can you complete this jigsaw of the multiplication square?

Calculate the fractional amounts of money to match pairs of cards with the same value.

This article gives you a few ideas for understanding the Got It! game and how you might find a winning strategy.

Practise your tables skills and try to beat your previous best score in this interactive game.

Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?

Imagine a wheel with different markings painted on it at regular intervals. Can you predict the colour of the 18th mark? The 100th mark?

An interactive game to be played on your own or with friends. Imagine you are having a party. Each person takes it in turns to stand behind the chair where they will get the most chocolate.

A game for 2 players that can be played online. Players take it in turns to select a word from the 9 words given. The aim is to select all the occurrences of the same letter.

A game to be played against the computer, or in groups. Pick a 7-digit number. A random digit is generated. What must you subract to remove the digit from your number? the first to zero wins.

A game for two or more players that uses a knowledge of measuring tools. Spin the spinner and identify which jobs can be done with the measuring tool shown.

A game for 2 people that everybody knows. You can play with a friend or online. If you play correctly you never lose!

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

An interactive game for 1 person. You are given a rectangle with 50 squares on it. Roll the dice to get a percentage between 2 and 100. How many squares is this? Keep going until you get 100. . . .

Practise your number bonds whilst improving your memory in this matching pairs game.

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

First Connect Three game for an adult and child. Use the dice numbers and either addition or subtraction to get three numbers in a straight line.

Here is a chance to play a version of the classic Countdown Game.

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

In this activity, the computer chooses a times table and shifts it. Can you work out the table and the shift each time?

Seeing Squares game for an adult and child. Can you come up with a way of always winning this game?

Three beads are threaded on a circular wire and are coloured either red or blue. Can you find all four different combinations?

Hover your mouse over the counters to see which ones will be removed. Click to remove them. The winner is the last one to remove a counter. How you can make sure you win?

Train game for an adult and child. Who will be the first to make the train?

Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.

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

A game for 1 or 2 people. Use the interactive version, or play with friends. Try to round up as many counters as possible.

A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.

Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?

A game for 1 person. Can you work out how the dice must be rolled from the start position to the finish? Play on line.

An interactive activity for one to experiment with a tricky tessellation

Incey Wincey Spider game for an adult and child. Will Incey get to the top of the drainpipe?

A game for two people that can be played with pencils and paper. Combine your knowledge of coordinates with some strategic thinking.

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?

How many right angles can you make using two sticks?

Choose 13 spots on the grid. Can you work out the scoring system? What is the maximum possible score?

A train building game for two players. Can you be the one to complete the train?

How many trains can you make which are the same length as Matt's and Katie's, using rods that are identical?

Use the interactivity or play this dice game yourself. How could you make it fair?

This 100 square jigsaw is written in code. It starts with 1 and ends with 100. Can you build it up?