Play -based trivia challenges to knowledge. Create and submit custom questions for credit. Compete globally with real-time rankings. Track progress and view statistics. Share achievements with friends.
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.
Learn arithmetic operations like subtracting 7-9, multiplying by 4, 8, 9, 11, and 25. Practice calculations through structured lessons with increasing difficulty. Track progress and reinforce algorithm understanding through targeted exercises.
Allows users to perform basic and scientific calculations. It supports arithmetic operations, square roots, percentages, and trigonometric functions. Users can edit expressions with a movable cursor and view calculation history.
Play games, climb leaderboards, collect hats, track
Learn arithmetic through interactive challenges and progress tracking. Complete problems to earn rewards and climb leaderboards. Track improvement over time. Adjust difficulty to match skill level. Receive feedback on performance.
Provides free exercises without ads or external contact. Features include a patented interface that reduces trial-and-error, no setup or registration, and offline functionality.
Solve arithmetic problems within a two-minute timer. Create equations using numbers and symbols. Compete against friends or a computer opponent. Earn points for complexity and creativity. Track progress and practice math skills.