21st May 2004 at 01:00
Ages 7-9

Card tricks

Put all these eight cards in three piles.

There must be at least one card in each pile.

In each pile, the sum of the numbers of the cards must be the same.

Find three different ways to do it.

Ages 13-15

A bit fishy

Make just two straight cuts across this fish and reassemble the pieces to make a square.

SOLUTIONS Card tricks The eight cards have a total of 36, so the total in each of the three piles must be 12 [8,4 7,5 6,3,2,1];[8,4 7,3,2 6,5,1];[8,3,1 6,4,2 7,5]

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