Addition and subtraction

game

Nice or Nasty for Two

Age

7 to 14

Challenge level

1 out of 3

Some Games That May Be Nice or Nasty for an adult and child. Use your knowledge of place value to beat your opponent.
problem

Charitable Pennies

Age

7 to 14

Challenge level

1 out of 3

Investigate the different ways that fifteen schools could have given money in a charity fundraiser.
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?
problem

Escape From the Castle

Age

7 to 14

Challenge level

2 out of 3

Skippy and Anna are locked in a room in a large castle. The key to that room, and all the other rooms, is a number. The numbers are locked away in a problem. Can you help them to get out?
$Got \It for Two$

game

Got It for Two

Age

7 to 14

Challenge level

2 out of 3

Got It game for an adult and child. How can you play so that you know you will always win?
problem

More Children and Plants

Age

7 to 14

Challenge level

3 out of 3

This challenge extends the Plants investigation so now four or more children are involved.
problem

More Plant Spaces

Age

7 to 14

Challenge level

3 out of 3

This challenging activity involves finding different ways to distribute fifteen items among four sets, when the sets must include three, four, five and six items.
game

Twenty20

Age

7 to 16

Challenge level

1 out of 3

Fancy a game of cricket? Here is a mathematical version you can play indoors without breaking any windows.
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

Eight Dominoes

Age

7 to 16

Challenge level

3 out of 3

Using the 8 dominoes, can you make a square where each of the columns and rows adds up to 8?