Subtraction with 30 levels and optional six-second rounds.
Read the instructions and press Start.
Keyboard: arrow keys, Space, Enter or number keys where appropriate. All activities also have touch-friendly buttons.
You will see one question at a time. Choose an answer to continue, or enter a number when a keyboard is available. Every game has thirty progressive levels. Problems begin with modest values, then grow in complexity to reward understanding rather than guessing. If the optional question clock is on, you have six seconds per question. You may turn this clock off before starting, and you can change it during play. A wrong answer or expired clock records a miss but does not erase earlier progress. Each correct answer adds points and advances one level. Complete all thirty levels to finish the challenge.
The game is free to play and runs entirely in a modern web browser. No account, purchase, advertising click, or personal information is necessary to begin. For the best experience, keep the screen visible and use an up-to-date browser with JavaScript enabled. You can pause your attempt by leaving the page or opening the instruction window, and you can always restart from the beginning. If sounds are distracting, use the Sound On/Off button. The audio consists of brief tones created on your own device through the Web Audio API, not downloaded music, commercial samples, or recordings from another title. Audio starts only after your interaction so that browsers allow playback.
The controls are intentionally simple and sized for both fingers and pointers. On small devices, rotate to landscape if you want more horizontal space, although portrait play is supported. On desktop, keyboard shortcuts are explained below the playing area. Buttons display readable text and are reachable by keyboard. Motion is minimal, and the design respects reduced-motion preferences. Games do not require a powerful graphics card, and artwork is made from CSS, simple characters, or canvas drawing instead of large media files.
Scores show progress inside the current session; they are not a promise of prizes, rankings, or rewards. You can replay freely and practice different strategies. Check your answer or movement carefully, remember that learning improves with repeated attempts, and enjoy a short activity without pressure. The game may respond differently on older devices, so use the on-screen controls if keyboard shortcuts are unavailable. This original EasyTutorGuide mini-game uses generic educational and arcade concepts rather than someone else's characters, trademarked team identity, songs, or designs.
Controls: Use the onscreen controls on phones and tablets. For desktop, use arrows to move or aim, Space/Enter to act, and numbered answers when shown. Toggle the six-second clock for math questions. Sound can be turned off at any time.