Kakooma can also be played with negative numbers. The rules are the same - find the number that is the sum of two others - but now each puzzle contains both positive and negative numbers.
In each 4-number square, find the number that is the sum
of 2 other numbers. Use all 4 sums to create 1 final puzzle and solve.
In this download you will receive 20 pages of puzzles using positive and negative numbers 1-15.