Enhance your mental math skills with a variety of arithmetic operations. Compete globally for high scores and improve your mathematical abilities through engaging challenges.





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9981 is great, but it's not the only option. Explore 50+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.





Enhance your mental math skills with a variety of arithmetic operations. Compete globally for high scores and improve your mathematical abilities through engaging challenges.















Sharpen your mental math skills by solving equations where you must select two numbers to match a given result and operator. Earn points for speed, but beware of mistakes that reset your progress. Challenge a friend to a duel of arithmetic prowess.


This app provides synchronized audio and visual guidance for the People's Education Edition math textbook for fourth graders. It offers detailed explanations, problem-solving assistance, and a rewarding learning mode to enhance children's interest and logical thinking.


This app provides synchronized learning content for elementary school students in subjects like math, English, and Chinese. It offers interactive features like text-to-speech, handwriting practice, and vocabulary quizzes to enhance learning and engagement.


This app offers a collection of brain-bending puzzles designed to challenge your logic and thinking. It features unexpected answers and tricky traps that will make you question everything. Perfect for those who enjoy a good mental workout and a laugh.



