problem
100 Square Jigsaw
Age
5 to 7
Challenge level
Can you complete this jigsaw of the 100 square?
problem
Tug of War
Age
5 to 7
Challenge level
Can you use the numbers on the dice to reach your end of the number line before your partner beats you?
problem
Two-digit targets
Age
5 to 7
Challenge level
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?
problem
Strike it Out
Age
5 to 11
Challenge level
Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.
problem
Ip Dip
Age
5 to 11
Challenge level
"Ip dip sky blue! Who's 'it'? It's you!" Where would you position yourself so that you are 'it' if there are two players? Three players ...?
problem
Sitting round the party tables
Age
5 to 11
Challenge level
Sweets are given out to party-goers in a particular way. Investigate the total number of sweets received by people sitting in different positions.
problem
Sticky Data
Age
5 to 7
Challenge level
You'll need to work in a group on this problem. Use your sticky notes to show the answer to questions such as 'how many girls are there in your group?'.
problem
Five Steps to 50
Age
5 to 7
Challenge level
Use five steps to count forwards or backwards in 1s or 10s to get to 50. What strategies did you use?
problem
Digit Addition
Age
5 to 11
Challenge level
Try out this number trick. What happens with different starting numbers? What do you notice?
problem
Arranging Additions and Sorting Subtractions
Age
5 to 7
Challenge level
Order these four calculations from easiest to hardest. How did you decide?
problem
Subtraction Slip
Age
5 to 7
Challenge level
Can you spot the mistake in this video? How would you work out the answer to this calculation?
problem
I'm Eight
Age
5 to 11
Challenge level
Find a great variety of ways of asking questions which make 8.
problem
Let's Investigate Triangles
Age
5 to 7
Challenge level
Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?
problem
Buzzy Bee
Age
5 to 7
Challenge level
Buzzy Bee was building a honeycomb. She decorated the honeycomb with a pattern using numbers. Can you discover Buzzy's pattern and fill in the empty cells for her?
problem
What's in a Name?
Age
5 to 7
Challenge level
What do you notice about these squares of numbers? What is the same? What is different?
problem
Hundred Square
Age
5 to 11
Challenge level
A hundred square has been printed on both sides of a piece of paper. What is on the back of 100? 58? 23? 19?
problem
Caterpillars
Age
5 to 7
Challenge level
These caterpillars have 16 parts. What different shapes do they make if each part lies in the small squares of a 4 by 4 square?
problem
Missing Middles
Age
5 to 7
Challenge level
Can you work out the domino pieces which would go in the middle in each case to complete the pattern of these eight sets of three dominoes?
problem
Birthday Cakes
Age
5 to 7
Challenge level
Jack's mum bought some candles to use on his birthday cakes and when his sister was born, she used them on her cakes too. Can you use the information to find out when Kate was born?
problem
Heads and Feet
Age
5 to 7
Challenge level
On a farm there were some hens and sheep. Altogether there were 8 heads and 22 feet. How many hens were there?
problem
Eggs in Baskets
Age
5 to 7
Challenge level
There are three baskets, a brown one, a red one and a pink one, holding a total of 10 eggs. How many eggs are in each basket?
problem
The Brown Family
Age
5 to 7
Challenge level
Use the information about Sally and her brother to find out how many children there are in the Brown family.
problem
Number Round Up
Age
5 to 7
Challenge level
Arrange the numbers 1 to 6 in each set of circles below. The sum of each side of the triangle should equal the number in its centre.
