Toys have been around since ancient times. Early toys were made of natural materials such as wood, rocks and clay. Children in Egyptian times played with dolls that had a wig and moveable limbs made from stone, pottery and wood. They also played with toy soldiers, wooden animals, marbles, spinning tops and knuckle bones which were thrown like dice. Modern toys are made of newer materials such as metals and plastics.
See if you can solve these four difficult arithmagons.
The aim of an arithmagon is to work out which numbers go in the empty circles. The numbers in the square boxes are made by adding together the numbers in the circles either side. For example, if the number in the square box was 10 you could try 6 and 4, but the numbers must also add up on the other edges, making this more difficult than it first appears.