Crab Math Run

Math practice built to keep you playing. A crab walks a pier over the sea, and the math problem rides inside the sun. Answer it and the parrot flies a plank across the gap. Answer fast and the next problem is already waiting. At the end of the run the boat comes in and presses every shell earned into gems. The math is real, and you set it • Addition, subtraction, multiplication and division: one sign, plus and minus, times and divide, or all four • Three levels: numbers 0 to 4, 0 to 9, and 0 to 12 • A custom range anywhere from 0 to 20, or one number to drill, like the sevens • Four speeds, from 15 seconds a problem down to 4 • Type the answer on a keypad, or pick from four choices • Every fact in the range comes up once before any repeats No shame in a wrong answer In Safe mode, the default, a missed problem still gets its plank, with the whole fact written on it, and the hero never…