You may also like

problem icon


Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?

problem icon

Sweets in a Box

How many different shaped boxes can you design for 36 sweets in one layer? Can you arrange the sweets so that no sweets of the same colour are next to each other in any direction?

problem icon

Maze 100

Can you go through this maze so that the numbers you pass add to exactly 100?

Multiply Multiples 2

Age 7 to 11 Challenge Level:
Remember the relationship between 'one times' and 'ten times' and 'one hundred times' a number. For example, 5 x 1 = 5 and  5 x 10 = 50 and 5 x 100 = 500.
You could begin by making both sides of the equation equal to 100, then 200, then 300 and so on.
Is there more than one way of completing the equation for each total? Can any of them be made in lots of different ways?