Algebra Sprint

How to play

Find x. Undo addition or subtraction before dividing by its coefficient.

Controls

Tap the board · Tab + Enter · Answer keys 1–4 where shown

A few ways to improve

• Undo operations in reverse order. Remove the added or subtracted constant first, then divide by the coefficient of x. Keeping that order clear prevents the common error of dividing only one part of a side.
• Substitute your candidate back into the original equation before choosing when signs are involved. A quick check catches mistakes such as adding a negative constant in the wrong direction.

Difficulty and daily progress

A round lasts 45 seconds. Every three starts of Algebra Sprint raise its daily difficulty, up to difficulty 10. Your count resets at 00:00 UTC, so tomorrow begins with the starting challenge again. The clock continues if you switch tabs, and leaving ends the attempt.

Scores and rewards

The score measures this game’s performance. Reward points are a separate account balance. Practice rounds earn no points or XP and do not enter the rewarded leaderboard. Rewarded rounds require sign-in, human verification, active play, and live gameplay checks before a result is saved. Idle or abandoned rounds do not earn rewards.

After an eligible rewarded round, keep its sponsored claim page focused for 12 seconds and complete a fresh hCaptcha. Then select Claim reward to add the pending points and XP to your account. No advertisement click or purchase is needed. You can return to an unfinished claim from the arcade; another rewarded round becomes available after that claim is collected or skipped.

Account points currently unlock site cosmetics. Each player level after level 1 adds a 0.1% bonus to points earned from games. Read the fair-play rules or visit Support if a round needs help.