Fast mental calculation observation concentration game
The app is a game of fast mental calculation that challenges users to improve their skills. The problems increase in difficulty as users play, requiring observation and concentration.
by Fabrice le Tourneur d'Ison★ 0.00 ratingsGames$0.99Data updated 2026-09-20
The app features the sound of Youkai Watch when medals are set. It includes mini-games like Brain Train, an escape room puzzle game, and a quiz game for learning numbers and calculations with time attack modes.
The app provides a way to practice 2-digit mental subtraction. It offers a PLAY mode for timed challenges and a WORK mode for unlimited practice, with statistics to track progress.
Clear the field by connecting pairs of identical or that sum to 10. Swipe to move tiles, solve levels with hints, share progress with friends, and compete on Center rankings.
Practice with exercises that improve number sense and calculation speed. Solve arithmetic problems without a calculator. Track progress over time and set daily practice goals. Learn techniques for faster calculations and memory training.
The app is a mental math game where players select four numbers that sum to 20. Players find hidden shapes within a grid, earning more points for faster completion.