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Consecutive Numbers

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

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There are three tables in a room with blocks of chocolate on each. Where would be the best place for each child in the class to sit if they came in one at a time?

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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?

Printer Ink

Age 11 to 14 Short Challenge Level:

A small ink cartridge has enough ink to print $600$ pages.
Three small ink cartridges can print as many pages as two medium cartridges.
Three medium cartridges can print as many pages as two large cartridges.

How many pages can be printed using a large cartridge?

If you liked this problem, here is an NRICH task that challenges you to use similar mathematical ideas.

This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.