Amy’s Dominoes Age 7 to 11 Challenge Level: How about when a friend begins a new rhythm at the same time? What happens when you enter different numbers? What happens if you join every second point on this circle? Find the chain which contains the smallest possible numbers.

How many different squares can you make altogether? Scroll down to see groups of tasks from the site which will give learners experience of specific skills. Investigate the different numbers of people and rats there could have been if you know how many legs there are altogether! Can you put these times on the clocks in order? Can you make square numbers by adding two prime numbers together? Can you work out the missing numbers?

# Patterns and Sequences KS2 :

To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

Put operations signs between the numbers 3 4 5 6 to make the highest possible number and lowest possible number. Can you find all the ways to get 15 at the top of this triangle of numbers?

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This challenge encourages you to explore dividing a three-digit number by a single-digit number. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks os2 everyday classroom practice.

## Problem Solving

What could Lolla have paid for the balloon? Number live Age 7 to 11 Challenge Level: What do you think is happening to the numbers? Trebling Age 7 to 11 Challenge Level: How many ways can you find to do up all four buttons on my coat?

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. This cube has solbing on each face which leaves marks on paper as it is rolled.

All the Digits Age 7 to 11 Challenge Level: What Is the Time? Age 5 to 7 Conjecturing and Generalising at KS1 The tasks in this collection encourage lower primary children to conjecture and generalise.

What Do You Need? Age 5 to 7 Reasoning and Convincing at KS1 The tasks in this collection can be used to encourage children to convince others of their reasoning, using ‘because’ statements. Remainders Age 7 to 14 Challenge Level: Square Subtraction Age 7 to 11 Challenge Level: Can you put the numbers 1 to 8 into the circles so that the four calculations are correct? Can you arrange the sweets so that no sweets of the same colour are next to each other in any direction?

This game is part of our creativity project, which you can read more about here. Multiply Multiples 1 Age 7 to 11 Challenge Level: Can activuties make square numbers by adding two prime numbers together?

How many times like this are there between midnight and 7 a.

Lolla bought a balloon at the circus. Factor track is not a race but a game of skill. How many cubes of each colour have we used?

Age 7 to 11 Challenge Level: Trebling Age 7 to 11 Challenge Level: Register for our mailing list. Investigate the total number of sweets received by people sitting in different positions.

# Working Systematically at KS2 :

Try out some calculations. Ten cards are put into five envelopes so that there are two cards in each envelope. Pick any ten numbers from the bags above so that their total is