110 free games for children, teenagers, adults and anyone who wants to keep their mind sharp. Everything runs in your browser, saves your best score on your own device, and needs no sign-up.
Games that train recall, working memory and number span. Short sessions, measurable progress.
13 games
Fast-reaction games that sharpen mental processing speed and attention under time pressure.
23 games
Deep-thinking logic puzzles that reward patience and planning rather than speed.
25 games
Core arithmetic, fractions and percentages — the skills that make mental maths effortless.
33 games
The unusual corners of mathematics: Vedic shortcuts, Roman numerals, number bases and clock arithmetic.
16 games
Gentle, colourful number games for primary-school children. Small numbers, plenty of encouragement.
27 games
Middle-school level games covering fractions, factors, primes and multi-step arithmetic.
59 games
Faster, harder games with algebraic thinking, number theory and real time pressure.
83 games
Keep mental arithmetic sharp with quick daily games you can finish in two minutes.
69 games
Clear, unhurried games with large type and no time pressure, built around memory and recall.
19 games
Addition, subtraction, multiplication and division — drilled as play rather than homework.
21 games
Fractions, decimals and percentages, and the connections between all three.
12 games
Grid puzzles and planning problems solved by reasoning, not calculation speed.
17 games
Primes, factors, multiples and divisibility — the structure underneath the numbers.
16 games
Beat the clock. Short rounds that reward instant recognition.
15 games
Vedic maths, Roman numerals, binary, modular arithmetic and other roads less travelled.
16 games
All four operations, two-digit numbers
All four operations
All four operations
Multiples of five to a hundred
Denominators up to twelve
The everyday set
The full everyday range
Fractions, decimals and percentages
Fractions against decimals
The classic range
Targets to 100
The full hundred grid
Ten timed arithmetic questions that get harder as you go.
Drill any times table with a streak counter.
Find the hidden number using higher-or-lower clues.
Slide and merge tiles to reach 2048.
The classic nine-by-nine logic puzzle.
Match each sum to its answer from memory.
Race the clock through rapid-fire questions.
Work out the rule and continue the sequence.
Mixed operations against a countdown.
Combine numbers to clear the board.
Arithmetic is a motor skill as much as an intellectual one. The difference between someone who finds mental maths easy and someone who does not is rarely raw ability — it is whether the basic facts have become automatic. Short, frequent practice does that, and games make short and frequent far more likely than worksheets do.
The games here are grouped three ways so you can find the right one quickly: by what they train, by who they suit, and by the maths they cover. Every game states plainly what it does and does not do — the memory games in particular come with an honest note about what brain training has and has not been shown to achieve.
Need a calculator instead of a game? The YogiCalc library has 138 of them.