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Pebbles

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?

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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?

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Maze 100

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

Matching Fractions, Decimals and Percentages

Stage: 2 and 3 Challenge Level: Challenge Level:1
Match the cards with the same value.
Keep an eye on your score - ending at around 400 would be an excellent score.

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To download a printable version of this game, use the links below. There are three sets - set A is the easiest and set C is the most difficult.

If you print double sided, then the cards will have an NRICH logo on the back. Otherwise, you can just print the first page.

Set A, Set B, Set C