Mental calculations

game

Wild Jack

Age

7 to 11

Challenge level

1 out of 3

A game for 2 or more players with a pack of cards. Practise your skills of addition, subtraction, multiplication and division to hit the target score.
problem

What Is Ziffle?

Age

7 to 11

Challenge level

1 out of 3

Can you work out what a ziffle is on the planet Zargon?
game

Dicey Operations in Line for Two

Age

7 to 11

Challenge level

1 out of 3

Dicey Operations for an adult and child. Can you get close to 1000 than your partner?
problem

Mathdoku

Age

7 to 11

Challenge level

1 out of 3

Complete the Mathdoku grid using the clues. Can you convince us that the number you have chosen for each square has to be correct?
game

Calculator Bingo

Age

7 to 11

Challenge level

2 out of 3

This is a game for two players. What must you subtract to remove the rolled digit from your number? The first to zero wins!
problem

Chocoholics

Age

7 to 11

Challenge level

2 out of 3

George and Jim want to buy a chocolate bar. George needs 2p more and Jim need 50p more to buy it. How much is the chocolate bar?
problem

3 by 3 Mathdokus

Age

7 to 14

Challenge level

1 out of 3

Can you use the clues to complete these 3 by 3 Mathematical Sudokus?
game

Fifteen

Age

7 to 14

Challenge level

2 out of 3

Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.
problem

6 by 6 Mathdokus

Age

7 to 16

Challenge level

1 out of 3

Can you use the clues to complete these 6 by 6 Mathematical Sudokus?
problem

Prime Magic

Age

7 to 16

Challenge level

2 out of 3

Place the numbers 1, 2, 3,..., 9 one on each square of a 3 by 3 grid so that all the rows and columns add up to a prime number. How many different solutions can you find?