There are three versions of this challenge. Money Bags Age 5 to 11 Challenge Level: What two-digit numbers can you make with these two dice? Make one big triangle so the numbers that touch on the small triangles add to Double Trouble Age 3 to 5 Doubling numbers.

This challenge is about finding the difference between numbers which have the same tens digit. Can you use the information to find out when Kate was born? Next Domino Age 5 to 7 Challenge Level: Maisy Goes Camping Age 3 to 5 Using everyday language to talk about addition and subtraction. There were chews for 2p, mini eggs for 3p, Chocko bars for 5p and lollypops for 7p in the sweet shop. Can you create your own repeating pattern? Use the information about Sally and her brother to find out how many children there are in the Brown family.

## Counting and Ordering KS1

Which comes next in each pattern of dominoes? Tasks for KS1 children which focus pgoblem working systematically. Age 5 to 11 Challenge Level: The idea is to change the colour of all the spots on the grid. Find the next two dominoes in these sequences. On a farm there were some hens and sheep.

# Fractions KS1 :

This article offers you practical ways to investigate aspects of your classroom culture. She decorated the honeycomb with a pattern using numbers.

Sweets are given out to party-goers in a particular way. How many different triangles can you draw on the dotty grid which each have one dot in the middle? Here are some arrangements of circles. How many trains can you make which are the same length as Matt’s, using rods that are identical? rnich

Money Bags Age 5 to 11 Challenge Level: Scroll down to see our complete collection of KS1 problems that require children to work systematically, or explore the two sub-collections focusing on important aspects of systematic working. Long Creatures Age 3 to 5 This activity focuses on making long creatures out of card to compare with each other.

Can you put these shapes in order of size?

## Addition and Subtraction KS1

Can you work out the domino pieces which would go in the middle in each case k1 complete the pattern of these eight sets of 3 dominoes? Timing using non-standard and standard devices. Can you convince us that you have found them all? In how many different ways can they build their houses?

Investigate the total number of sweets received by people silving in different positions. Use the number weights to find different ways of balancing the equaliser. Incey Wincey Age 3 to 5 Counting.

Pat probem her sweets in different nrihc and both times she has some left over. Using everyday language to talk about size and position, comparing and ordering by size. Two Dice Age 5 to 7 Challenge Level: How quickly can you put back the numbers on the hundred square? She stopped for a rest after writing seventeen digits. If you count from 1 to 20 and clap more loudly on the numbers in the two times table, as well as saying those numbers loudly, which numbers will be loud?

# Patterns and Sequences KS1 :

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 solvjng into everyday classroom practice. What do you notice?

Always, Sometimes or Never? This activity challenges you to decide on the ‘best’ number to use in each statement. In how many different ways can you break up a stick of 7 interlocking cubes?

What patterns can you make with a set of dominoes? On the same day he sowed a bean in another pot. Birthday Cakes Age 5 to 7 Challenge Prooblem