Autumn Arithmagons

Autumn, or Fall lies between the seasons of Summer and Winter. It is the season when the leaves change colour and are shed from the deciduous trees. Did you know that pumpkins were once believed to cure snake bite and remove freckles?

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.