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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?

Greater Than or Less Than?

Stage: 2 Challenge Level: Challenge Level:1
Think carefully about the value of each digit in the number.
Begin by comparing the 1s then the tenths and finally the hundredths.