Timed 20: Use the 4 provided numbers to create equations that equal the available targets (1–20). Each number can be used once per equation.
Climb 100: Find equations for targets 1 to 100 in sequential order. Mathematically impossible numbers are skipped automatically. Take your time, there's no timer!
Note: Grayed out numbers in the grid are mathematically impossible to solve with today's numbers.
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