Games that train recall, working memory and number span. Short sessions, measurable progress.
Other benefits:
Boost Memory Mind Sharpness Strong Mind Smart Mathematician Rare Maths
Type them in order
Type them in reverse
Half a second per digit
A slow, unhurried version
The gentle introduction
The standard challenge
Genuinely difficult
Same task, less thinking time
Nine squares, a gentle start
The standard board
Twenty-five squares
Half-second flashes
Match each sum to its answer from memory.
Every game on YogiCalc is free, runs entirely in your browser, needs no sign-up and saves your best score on your own device. Nothing is uploaded anywhere. They work on a phone, a tablet or a computer.
Looking for something else? The full games library lists all 110 games, and the calculator library covers finance, tax, health and conversion.