The winner keeps this score. Mr Gilderdale is playing a game with his class. Number problems at primary level that require careful consideration. What could Lolla have paid for the balloon? These activities lend themselves to systematic working in the sense that it helps to have an ordered approach. Finding Fifteen Age 7 to 11 Challenge Level: Farey Sequences Age 11 to 14 Challenge Level:

Two and Two Age 11 to 14 Challenge Level: There are nasty versions of this dice game but we’ll start with the nice ones This article suggests some ways of making sense of calculations involving positive and negative numbers. What happens when you change the position of the jigsaws? Powers of numbers behave in surprising ways.

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 prblem classroom practice. Number Balance Age 5 to 7 Challenge Level: What is the smallest number you can find that lights up all the lights?

What do you notice?

## Place Value KS2

A point for a win. Balance Power Age 11 to 18 Challenge Level: What rule might he have chosen? What is the sum of the numbers that are diagonally opposite each other?

Number problems at primary level that may require resilience. What happens with different starting numbers? All the Digits Age 7 to 11 Vallue Level: She decorated the honeycomb with a pattern using numbers.

# Place Value and Powers :

Unexpected Ordering Age 5 to 7 Challenge Peoblem This article, written for teachers, looks at the different kinds of recordings encountered plce Primary Mathematics lessons and the importance of not jumping to conclusions! How have the numbers been placed in this Carroll diagram?

How many more miles must the car travel before the numbers on the milometer and the trip meter contain the same digits in the same order? What is the minimum number of small cards that is needed?

Register for our mailing list. Every card he revealed had the same value as the one he had just finished spelling.

How could he have put them into three piles so that the total in each pile was 15? Dicey Addition Age 5 to 11 Challenge Level: Buying a Balloon Age 7 to 11 Challenge Nroch A school song book contains songs.

Ribbon Squares Age 7 to 11 Challenge Level: This game introduces a decimal point. Use the number weights to find different ways of balancing the equaliser.

Investigate the total number of sweets received by people sitting in different positions. A task which depends on members of the group noticing the needs of others and responding.

Who said that adding couldn’t be fun? Dicey Operations for an adult and child.

Find out what a Deca Tree is and then work out how many leaves there will be after the woodcutter has nrixh off a trunk, a branch, a twig and a leaf. Sixty-seven Squared Age 16 to 18 Challenge Level: Caterpillars Age 5 to 7 Challenge Level: How about if I had five buttons?

This square jigsaw is written in code.