Being Curious - Number

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...

problem

5 by 5 Mathdokus

Age

7 to 16

Challenge level

Can you use the clues to complete these 5 by 5 Mathematical Sudokus?

problem

Xavi's T-shirt

Age

7 to 16

Challenge level

How much can you read into a t-shirt?

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

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

Largest product

Age

11 to 14

Challenge level

Which set of numbers that add to 100 have the largest product?

problem

Consecutive seven

Age

11 to 14

Challenge level

Can you arrange these numbers into 7 subsets, each of three numbers, so that when the numbers in each are added together, they make seven consecutive numbers?