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Two stones
This game is known as Pong hau k'i in China and Ou-moul-ko-no in Korea. Why not challenge a friend to play it with you?
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Nim-7
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Four triangles puzzle
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?
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What is the time?
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Whose face?
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Seeing squares
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.
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Four colours
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Make 37
Four bags contain a large number of 1s, 3s, 5s and 7s. Can you pick any ten numbers from the bags so that their total is 37?
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Teddy Town
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?
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Ladybird box
Place six toy ladybirds into the box so that there are two ladybirds in every column and every row.
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Three by three
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Three way mix up
Jack has nine tiles. He put them together to make a square so that two tiles of the same colour were not beside each other. Can you find another way to do it?
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Teddy Town - part two
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?
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Teddy Town - part three
There are sixteen teddies in Teddy Town - four red, four blue, four yellow and four green. There are also sixteen houses, four of each colour. Can you put them on the map of Teddy Town according to the rules?
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Teddy Town - part four
There are twenty five teddies in Teddy Town - five red, five blue, five yellow, five green and five purple. There are also twenty five houses, five of each colour. Can you put them on the map of Teddy Town according to the rules?
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Teddy Town - part five
There are thirty six teddies in Teddy Town - six red, six blue, six yellow, six green, six purple and six turquoise. There are also thirty six houses, six of each colour. Can you put them on the map of Teddy Town according to the rules?
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The third dimension
Here are four cubes joined together. How many other arrangements of four cubes can you find? Can you draw them on dotty paper?
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4 dom
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Odds and threes
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.
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Factors and multiples game
A game in which players take it in turns to choose a number. Can you block your opponent?
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Matching fractions, decimals and percentages
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Twinkle twinkle
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Dicey operations
In these addition and subtraction games, you'll need to think strategically to get closest to the target.
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Dicey operations in line
In these addition, subtraction, multiplication and division games, you'll need to think strategically to get closest to the target.
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Shape times shape
These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?
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First connect three
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Air nets
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Coded hundred square
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Less is more
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More less is more
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Mystery matrix
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Pentanim
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Colour in the square
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Low go
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Fifteen
Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.
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Sets of numbers
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Got it
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.
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Remainders
I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?
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Roll these dice
Roll two red dice and a green dice. Add the two numbers on the red dice and take away the number on the green. What are all the different possible answers?
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Square tangram
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Bean bags for Bernard's bag
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?
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Domino square
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Factor track
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Prime magic
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Dominoes
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Add 3 dice
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Creating cubes
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Counter roundup
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Seven flipped
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Tea cups
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Penta place
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Eight dominoes
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Family tree
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Two and two
How many solutions can you find to this sum? Each of the different letters stands for a different number.
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Domino magic rectangle
An ordinary set of dominoes can be laid out as a 7 by 4 magic rectangle in which all the spots in all the columns add to 24, while those in the rows add to 42. Try it! Now try the magic square...