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3799 problems, 159 games, 543 articles, 432 general resources, 39 interactive environments, 27 projects, 1399 Lists, 987 from Stage 1, 1702 from Stage 2, 2201 from Stage 3, 1756 from Stage 4, 1364 from Stage 5

Who said that adding, subtracting, multiplying and dividing couldn't be fun?

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?

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.

Nine squares are fitted together to form a rectangle. Can you find its dimensions?

The large rectangle is divided into a series of smaller quadrilaterals and triangles. Can you untangle what fractional part is represented by each of the ten numbered shapes?

These eleven shapes each stand for a different number. Can you use the multiplication sums to work out what they are?

Learn all about Wild Maths and how you can support mathematical creativity in the classroom

Can you describe a piece of paper clearly enough for your partner to know which piece it is?

An environment which simulates working with Cuisenaire rods.

Have a go at making a few of these shapes from paper in different sizes. What patterns can you create?

Can you work out what shape is made when this piece of paper is folded up using the crease pattern shown?

Four of these clues are needed to find the chosen number on this grid and four are true but do nothing to help in finding the number. Can you sort out the clues and find the number?

How many ways can you find to put in operation signs (+ - x ÷) to make 100?

This brief article, written for upper primary students and their teachers, explains what the Young Mathematicians' Award is and links to all the related resources on NRICH.

For this task, you'll need an A4 sheet and two A5 transparent sheets. Decide on a way of arranging the A5 sheets on top of the A4 sheet and explore ...

Four strategy dice games to consolidate pupils' understanding of rounding.

This task combines spatial awareness with addition and multiplication.

This challenge combines addition, multiplication, perseverance and even proof.

These five resource packs, originally produced for the MMP's Motivate project, explore how maths underpins biomedical science.

Take a look at the video and try to find a sequence of moves that will take you back to zero.

A cinema has 100 seats. Is it possible to fill every seat and take exactly £100?

Here are some arrangements of circles. How many circles would I need to make the next size up for each? Can you create your own arrangement and investigate the number of circles it needs?

If you'd like to explore the game freely, without any nudges from us, choose this version.

Use the applet to explore the area of a parallelogram and how it relates to vectors.

Use the applet to make some squares. What patterns do you notice in the coordinates?

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

How could you estimate the number of pencils/pens in these pictures?

Can you find all the ways to get 15 at the top of this triangle of numbers?

Use the numbers and symbols to make this number sentence correct. How many different ways can you find?

Use five steps to count forwards or backwards in 1s or 10s to get to 50. What strategies did you use?

This challenge encourages you to explore dividing a three-digit number by a single-digit number.

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

In this calculation, the box represents a missing digit. What could the digit be? What would the solution be in each case?

Have a go at balancing this equation. Can you find different ways of doing it?

Use two dice to generate two numbers with one decimal place. What happens when you round these numbers to the nearest whole number?

What happens when you round these numbers to the nearest whole number?

This activity involves rounding four-digit numbers to the nearest thousand.

Can you work out some different ways to balance this equation?

Can you complete this calculation by filling in the missing numbers? In how many different ways can you do it?

What two-digit numbers can you make with these two dice? What can't you make?

In this activity focusing on capacity, you will need a collection of different jars and bottles.

Use the information on these cards to draw the shape that is being described.