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Permanent link to this puzzle: mscroggs.co.uk/puzzles/72

Source: Teaching Further Maths blog

2009 unit cubes are glued together to form a cuboid. A pack, containing 2009 stickers, is opened, and there are enough stickers to place 1 sticker on each exposed face of each unit cube.

How many stickers from the pack are left?

If you enjoyed this puzzle, check out Sunday Afternoon Maths LXI,

puzzles about volume, or a random puzzle.

puzzles about volume, or a random puzzle.