techniques, not drilling
A 9-phase path teaches the trick behind each operation — the percentage mirror, the 11s, successive halving — then makes you own it against the clock.
Timed mental math training for people with a test on the calendar: trading and quant interviews, numerical reasoning tests, selection processes. 40 techniques, a mock exam, and a score you can compare.
A 9-phase path teaches the trick behind each operation — the percentage mirror, the 11s, successive halving — then makes you own it against the clock.
80 questions in 8 minutes, +1 right, −2 wrong, pass mark 51. The exact interview format, with a verdict and full history.
The Sprint runs Zetamac rules, so your score means the same as anyone else’s. It is the number you watch climb week after week.
The mental arithmetic test firms use: 80 questions in 8 minutes, wrong answers penalised. You practise the real thing, not a watered-down version.
Numerical reasoning, civil service exams, university admissions, any selection process with a maths section. You know when it is. You need to be fast by then.
All of phase 1, the unlimited Sprint and one sample mock exam cost nothing. The full path from US$8 a month, or US$19 for the 3-month pass. 14-day guarantee.