Speed Math - Mental Arithmetic

Welcome to Speed Math!

Whether you are looking for a relaxing daily mental stretch or an intense competitive arcade experience, "Speed Math" is the ultimate brain-training app. The gameplay loop is simple but highly addictive: numbers will flash on the screen, and you must add all the flashed numbers together, then enter your final answer on the screen.

Master 4 Difficulty Tiers

Scale your mental math skills from basic addition to human-calculator levels.

Beginner: 1-digit numbers (1-9) flashing every 1.0 second.

Intermediate: 2 to 3-digit numbers flashing at a moderate speed of 0.8 seconds.

Expert: 3 to 4-digit numbers flashing fast every 0.6 seconds.

Olympiad: 4 to 5-digit numbers flashing at an extreme, almost subliminal speed of 0.4 seconds per flash.