Perform arithmetic operations on numbers in bases 2 to 36. Convert between number bases. Input numbers in various bases. Handle signed and unsigned negative numbers using two's complement. Support fractions with up to 8 decimal places.
by Buddy Sun★ 4.77 ratingsEducationFreeData updated 2026-09-08
Solve math puzzles by filling in numbers 0-9 to complete multiplication and division equations. Avoid placing 0 in the leftmost cell. Generate new questions or replay saved ones. Use memo, undo, redo, and lock features to manage entries.
Offers skill-building exercises for arithmetic, fractions, and geometry. Users can play timed challenges, track progress, and compete on leaderboards. Includes interactive puzzles and customizable difficulty levels.
