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Consecutive Numbers

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

Calendar Capers

Choose any three by three square of dates on a calendar page...

Days and Dates

Investigate how you can work out what day of the week your birthday will be on next year, and the year after...

Mini-sudoku

Age 11 to 14 Short Challenge Level:

The top 2 by 2 outlined block must contain a 3 and a 4, and this can be done in two ways. For each choice there is only one way to complete the entire mini-sudoku.
This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.