problem
Subtraction surprise
Age
7 to 14
Challenge level
Try out some calculations. Are you surprised by the results?
problem
Statement snap
Age
7 to 14
Challenge level
You'll need to know your number properties to win a game of Statement Snap...
game
Favourite
More Dicey operations
Age
7 to 14
Challenge level
In these multiplication and division games, you'll need to think strategically to get closest to the target.
game
Favourite
Dicey operations
Age
7 to 14
Challenge level
In these addition and subtraction games, you'll need to think strategically to get closest to the target.
problem
Consecutive numbers
Age
7 to 14
Challenge level
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
problem
Largest product
Age
11 to 14
Challenge level
Which set of numbers that add to 100 have the largest product?
problem
How much can we spend?
Age
11 to 14
Challenge level
A country has decided to have just two different coins, 3z and 5z
coins. Which totals can be made? Is there a largest total that
cannot be made? How do you know?
problem
Take three from five
Age
11 to 16
Challenge level
Caroline and James pick sets of five numbers. Charlie tries to find three that add together to make a multiple of three. Can they stop him?
problem
Stars
Age
11 to 14
Challenge level
Can you work out what step size to take to ensure you visit all the dots on the circle?
problem
A chance to win?
Age
11 to 14
Challenge level
Imagine you were given the chance to win some money... and imagine
you had nothing to lose...
problem
Beelines
Age
14 to 16
Challenge level
Is there a relationship between the coordinates of the endpoints of a line and the number of grid squares it crosses?