The Happy Puzzle Company Combinations - Challenging Puzzle Game - 72 Multi-Level Challenges - Fill The Grid with Clever additions, Subtractions, and

Fill The Grid By Adding, Subtracting Or Combining The Contents Of The Square Holes To Equal The Contents Of The Circular Hole! Each coloured shape has two different pieces, one containing square holes and one containing a circular hole. The 72 multi-level challenges require you to fill the whole grid, so that for each colour, combining the two numbers or symbols that appear in the square holes will equal what appears in the circular hole of the same colour, all at the same time. Sometimes, that will involve addition, sometimes subtraction, even colour mixing and sometimes some creative thinking! Combinations is a fun and addictive set of puzzles, in which you will need to think beyond the obvious.