Numerical Reasoning Practice is built by Cognivy, a small independent team making honest practice tools for cognitive assessments. Our sister site covers matrix (non-verbal) reasoning; this one covers the numerical tests used in hiring.
Every question on this site is generated by a deterministic engine and machine-verified: the correct answer is computed from the question’s own data, never stored by hand, so a keying error can’t slip through. Wrong-answer options aren’t random — each encodes a specific, named mistake (like using the new value as the base of a percentage change), which is why our feedback can tell you what went wrong, not just that something did.
Test preparation is full of invented statistics. We hold ourselves to stricter rules: percentiles are only reported against a clearly labelled baseline with a visible sample size; we never claim a simulator is the real test — our provider pages state exactly what matches (format, timing, calculator policy) and what doesn’t; and when our free diagnostic can’t support a precise claim, we label the estimate as an estimate. The full method is on how scoring works.
The first test is always free, with no signup. A free account adds your full breakdown and daily practice. One lifetime payment — no subscription — unlocks the full bank, all simulators and mocks. We don’t run ads and we don’t sell data; the product is the business.
We are not affiliated with, or endorsed by, any test publisher. SHL, Criteria, Wonderlic, Aon, Korn Ferry, Saville, Pearson and all other publisher names are trademarks of their respective owners. Our practice content is original.
Questions, corrections, or something that looks wrong? Email hello@cognivy.io — corrections especially welcome; the honesty rules only work if they’re enforceable from outside.