Here are some problems that we hope you will puzzle over, play with, and pit your wits against. Practise and persevere, and your persistence will pay off!
problem
Favourite
Multiples Sudoku
Age
11 to 14
Challenge level
Each clue in this Sudoku is the product of the two numbers in adjacent cells.
problem
Favourite
Shape Products
Age
11 to 14
Challenge level
These eleven shapes each stand for a different number. Can you use the multiplication sums to work out what they are?
problem
Favourite
Number Families
Age
11 to 14
Challenge level
How many different number families can you find?
problem
Favourite
Alison's quilt
Age
11 to 14
Challenge level
Nine squares are fitted together to form a rectangle. Can you find its dimensions?
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Factors, Multiple and Primes - Short Problems
A collection of short problems on factors, multiples and primes.
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Factors, multiples and primes
Challenge level
Working on these problems will help you develop a better understanding of factors, multiples and primes.
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Number operations & calculation methods
Challenge level
Working on these problems will help you develop a better understanding of number operations and calculation methods.
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Place value, integers, ordering & rounding
Challenge level
Working on these problems will help you develop a better understanding of place value, ordering and rounding.