CalQ for Android

Haven't done Math in years? You should, and you can!

CalQ is a math-based board game where your goal is to reach a target number the game gives you. You do this by combining cells: addition (+1 to +3), subtraction (-1 to -3), or multipliers (x2 or x3).

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4.8

It has both a normal mode and a Time Attack mode, where you need to solve as many puzzles as possible in just 90 seconds! Unfortunately, these are the only difficulty options, so it can be rough starting out.