14th January 2005 at 00:00
Puzzles to test mathematical skills, set by Anita Straker. Solutions below More brainteasers on


Use each of the numbers 1, 2, 3, 4, 5, 6, 7. Write one number in each circle.

The sum of the numbers in each line of three circles must add up to 12.

Find ways to do it.


Emily colours 3 squares on this 4 by 4 grid.

The squares touch edge to edge.

In how many different ways can Emily colour the three squares?

Coloured squares (age 9-13) 52 ways: 8 ways: 8 ways: 9 ways: 9 ways: 9 ways: 9 ways:

SOLUTIONS Magic butterfly (age 7-11) Here are 3 solutions. Reflections or rotations are also possible.

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