Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.
There are nine teddies in Teddy Town - three red, three blue and three yellow. There are also nine houses, three of each colour. Can you put them on the map of Teddy Town according to the rules?
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?
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.
A game for 1 person to play on screen. Practise your number bonds whilst improving your memory
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?
Can you hang weights in the right place to make the equaliser balance?
Can you use the numbers on the dice to reach your end of the number line before your partner beats you?
Can you fit the tangram pieces into the outline of Little Ming?
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?
Investigate how the four L-shapes fit together to make an enlarged L-shape. You could explore this idea with other shapes too.
Sort the houses in my street into different groups. Can you do it in any other ways?
This was a problem for our birthday website. Can you use four of these pieces to form a square? How about making a square with all five pieces?
Find out what a "fault-free" rectangle is and try to make some of your own.
Interactive game. Set your own level of challenge, practise your table skills and beat your previous best score.
Can you complete this jigsaw of the 100 square?
Can you complete this jigsaw of the multiplication square?
This article gives you a few ideas for understanding the Got It! game and how you might find a winning strategy.
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?
How can the same pieces of the tangram make this bowl before and after it was chipped? Use the interactivity to try and work out what is going on!
Ben and his mum are planting garlic. Use the interactivity to help you find out how many cloves of garlic they might have had.
Can you see why 2 by 2 could be 5? Can you predict what 2 by 10 will be?
A game for 2 players. Can be played online. One player has 1 red counter, the other has 4 blue. The red counter needs to reach the other side, and the blue needs to trap the red.
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?
Use the interactivities to fill in these Carroll diagrams. How do you know where to place the numbers?
How have the numbers been placed in this Carroll diagram? Which labels would you put on each row and column?
Here is a chance to play a version of the classic Countdown Game.
Watch this film carefully. Can you find a general rule for explaining when the dot will be this same distance from the horizontal axis?
Exchange the positions of the two sets of counters in the least possible number of moves
Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.
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 2 people that everybody knows. You can play with a friend or online. If you play correctly you never lose!
This is a game for two players. Can you find out how to be the first to get to 12 o'clock?
Use the number weights to find different ways of balancing the equaliser.
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.
There are three versions of this challenge. The idea is to change the colour of all the spots on the grid. Can you do it in fewer throws of the dice?
Can you put the numbers from 1 to 15 on the circles so that no consecutive numbers lie anywhere along a continuous straight line?
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 variant on the game Alquerque
Stop the Clock game for an adult and child. How can you make sure you always win this game?
Place six toy ladybirds into the box so that there are two ladybirds in every column and every row.
Incey Wincey Spider game for an adult and child. Will Incey get to the top of the drainpipe?
If you can post the triangle with either the blue or yellow colour face up, how many ways can it be posted altogether?
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.
Is it possible to place 2 counters on the 3 by 3 grid so that there is an even number of counters in every row and every column? How about if you have 3 counters or 4 counters or....?
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?
A game for 2 people that can be played on line or with pens and paper. Combine your knowledege of coordinates with your skills of strategic thinking.
How many right angles can you make using two sticks?
Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?