MATHDROP

30 seconds. One question. How much time can you save?

Solve increasingly difficult mental-math questions. Start with 30 seconds; each round removes one second until 3 seconds, then removes 0.1 seconds per round. Correct answers add your remaining time to your score. A wrong answer or timeout ends your run.

FREE — US$0: full game, unlimited attempts, daily and practice modes, personal records and access to world rankings.

COMPETITOR — US$2 once for this game: publication of verified results, competitive profile, position, badge and advanced statistics. No gameplay advantages.

Open Online inside the game to sign in with itch.io. Sign in before paying through the official checkout, then refresh your profile. Only a completed USD payment of at least $2 for this game qualifies. Free keys do not qualify.

Verified runs use server-generated questions and the server clock. Local/offline scores are kept separate. Daily and weekly rankings use UTC. Financial end-to-end verification with a real paid customer remains pending; no test purchase was made.

Touch or click one of four answers, or press 1–4. English, Portuguese and Spanish. Made by QuantMatrix Games.