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Homes

Six new homes are being built! They can be detached, semi-detached or terraced houses. How many different combinations of these can you find?

Number Squares

Start with four numbers at the corners of a square and put the total of two corners in the middle of that side. Keep going... Can you estimate what the size of the last four numbers will be?

I'm Eight

Find a great variety of ways of asking questions which make 8.

Up and Down

Age 5 to 7
Challenge Level

Anil from Irmak Primary School, Turkey says that "Sam got on the elevator on 8th floor".

This shows how it can be checked out. (Minus means going down, plus means going up).

8 - 5 = 3 (3rd floor)
3 + 6 = 9 (9th floor)
9 - 7 = 2 (2nd floor)

The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.
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NRICH is part of the family of activities in the Millennium Mathematics Project.