Mental arithmetic and everyday maths problems
Compare quantities, check units and organise small decisions using numbers.
A way to begin
Write what each number represents. Before calculating, check whether you are comparing grams with kilograms, total with unit prices, or minutes with hours. Then estimate whether the result makes sense.
No registration needed. Each game explains its rules; accessibility settings are in Aa. Rest, switch activities or return whenever you wish.
Games to choose
Calm arithmetic
Ten little sums. No rush at all.
2048
Slide, merge, and think one move ahead.
Kakurasu
Every square has a weight. Make it all add up.
Sudoku
Nine numbers. One satisfying challenge.
Problems to think through and explain
From play to reflection
After playing, describe your strategy and what you would change. Improving at a game does not itself demonstrate general changes in memory or intelligence.
Try the daily journey