Numerlo – Daily mental math training with a dynamic ranking system

Summary: Numerlo is a 60-second mental math trainer that adapts question difficulty based on performance and uses the Numerlo Index, a dynamic ranking system inspired by chess Elo, to track ability over time. It includes specialized practice modes for finance, accounting, sales, medicine, actuarial, and engineering fields.

What it does

Numerlo challenges users to solve as many mental math problems as possible in one minute, increasing difficulty with higher scores. The Numerlo Index adjusts rankings based on training consistency, dropping if users stop practicing.

Who it's for

It targets professionals needing to maintain or improve mental math skills across various industries.

Why it matters

Numerlo addresses the decline in basic mental math ability among professionals by providing focused daily practice with measurable progress.