Not only is this a hard type of maths puzzle to complete, the words themselves are quite tricky.
Remember in a word snake start at the arrow and track letters which are next to the previous letter (not diagonally).This means that you can follow quite a tricky path through the grid. Each letter of the grid is only used once.
The first mathematical word is given to you and it starts at the bottom left and snakes its way up the grid.
The second word begins with m and is next to the e of average. You are not given any clues for the last four words which makes it very difficult – you may need to peep at the answer to see what the words are and then track them.