Build Speed Math One Method at a Time

Vedic Mathematics is a 20th-century collection of pattern-based techniques organised around 16 sutras. The Trachtenberg System uses fixed digit-and-neighbour rules, especially for multiplication. NumDojo teaches both, alongside Soroban, so you can choose a method that fits the numbers in front of you.

Start with one short lesson, then solve its practice set accurately before chasing speed. NumDojo saves your progress and schedules review problems based on your answers. Short, regular sessions are easier to sustain than occasional long sessions.

Speed-calculation techniques can help with the arithmetic steps inside timed problems, but they do not replace competition problem-solving. The current launch includes timed computer practice in Battle mode. Public ranked matchmaking and tournaments are not available.

Choose a supported technique and timer tier, then play a first-to-three match against the computer. A match has at most five rounds. Computer practice does not change your rating or award competitive XP. Public player matchmaking is not available during the launch.

The Free plan includes 42 foundation lessons across all 8 learning paths, 20 practice problems per day, saved progress, scheduled review, and computer Battle practice. No card is required.

Lessons include worked steps, prediction prompts, hints, practice, and an exit check. The Help Center covers account and product questions, and you can contact support@numdojo.com when you need help from the NumDojo team.

The curriculum is designed for learners aged 8 to 18, and adults can use the same lessons and practice tools. Public registration begins at age 13. Under-13 and managed-account onboarding are not open during the current launch.