Red or black spinner
Interactive balance
Tessellation interactivity
Tangram browser
Interactive tasks and games
These primary activities and games all have interactive content, making them ideal for use on tablets, laptops or in a computer room.Seesaw shenanigans
A group of animals has made a seesaw in the woods. How can you make the seesaw balance?
Celebrate 25 years of NRICH
To celebrate NRICH's 25th birthday, why not play this special version of our classic game, Got It? Can you devise a strategy so that you will always win?
Matching numbers for two
Turning man
Always, sometimes or never? KS1
Are these statements relating to calculation and properties of shapes always true, sometimes true or never true?
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.
Carroll diagrams
Use the interactivities to fill in these Carroll diagrams. How do you know where to place the numbers?
Growing garlic
Ben and his mum are planting garlic. Can you find out how many cloves of garlic they might have had?
Robot monsters
Matching triangles
Can you sort these triangles into three different families and explain how you did it?
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?
Inside triangles
Cuisenaire counting
Gathering gems
Tables teaser
Repeating patterns
One big triangle
Make one big triangle so the numbers that touch on the small triangles add to 10.
Two-digit targets
You have a set of the digits from 0 to 9. Can you arrange these in the five boxes to make two-digit numbers as close to the targets as possible?
Board block
Largest even
Same length trains
Poly plug rectangles
The computer has made a rectangle and will tell you the number of spots it uses in total. Can you find out where the rectangle is?
Matching numbers
Seeing squares for two
Multiplication tables - matching cards
Board block for two
Matching time
Try this matching game which will help you recognise different ways of saying the same time interval.
Sizing them up
Can you put these shapes in order of size? Start with the smallest.
Sort the street
Sort the houses in my street into different groups. Can you do it in any other ways?
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?
Ladybird box
Colouring triangles
Explore ways of colouring this set of triangles. Can you make symmetrical patterns?
Three way mix up
Find the difference
Change around
Junior frogs
Chain of changes
Arrange the shapes in a line so that you change either colour or shape in the next piece along. Can you find several ways to start with a blue triangle and end with a red circle?
Three ball line up
Light the lights
Investigate which numbers make these lights come on. What is the smallest number you can find that lights up all the lights?
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?
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?
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?
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?
Flip flop - matching cards
Tangram tangle
If you split the square into these two pieces, it is possible to fit the pieces together again to make a new shape. How many new shapes can you make?
Three squares
What is the greatest number of squares you can make by overlapping three squares?
4 dom
Two and one
Stop the clock for two
Phiddlywinks
A square of numbers
Fractional triangles
Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.
Twice as big?
Investigate how the four L-shapes fit together to make an enlarged L-shape. You could explore this idea with other shapes too.
Always, sometimes or never? Shape
Are these statements always true, sometimes true or never true?
Your number is...
Multiplication square jigsaw
Triangle in a square
Unravelling sequences
Arrangements
Fruity totals
In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?
An easy way to multiply by 10?
First connect three
Mathdoku
The Number Jumbler
The Number Jumbler can always work out your chosen symbol. Can you work out how?
Diagonally square
Latin lilies
Less is more
Treasure hunt
Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?
Nine-pin triangles
How many different triangles can you make on a circular pegboard that has nine pegs?
Four-digit targets
Which scripts?
4 by 4 Mathdokus
Can you use the clues to complete these 4 by 4 Mathematical Sudokus?
Coded hundred square
Sliding game
5 by 5 Mathdokus
Can you use the clues to complete these 5 by 5 Mathematical Sudokus?
Times tables shifts
In this activity, the computer chooses a times table and shifts it. Can you work out the table and the shift each time?
Fractions and coins game
Seeing parallelograms
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 parallelogram.
Factors and multiples game
A game in which players take it in turns to choose a number. Can you block your opponent?
Missing multipliers
The remainders game
Play this game and see if you can figure out the computer's chosen number.
A puzzling cube
Here are the six faces of a cube - in no particular order. Here are three views of the cube. Can you deduce where the faces are in relation to each other and record them on the net of this cube?
Rod fractions
Matching fractions, decimals and percentages
Matching fractions
Can you find different ways of showing the same fraction? Try this matching game and see.
First connect three for two
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.