About our number games
These free number games and math puzzles online are for anyone who enjoys thinking with digits, from pure logic grids like Sudoku and KenKen to the tile-merging strategy of 2048, quick-fire arithmetic in Math Puzzles, and the digit-span test in Number Memory.
Only some of these games involve actual math. Sudoku uses numbers purely as symbols, so you never add anything up, while Math Puzzles is all about calculating quickly and accurately. That range makes this a good collection for kids practicing times tables, adults keeping their mental arithmetic sharp, and logic fans who simply like the tidiness of a number grid.
Everything runs free in your browser with no download. Sudoku and KenKen have daily puzzles, and every game here has a leaderboard for times, scores or digits remembered.
Where to start
SudokuNo math required, just logic. The best starting point for most players.
KenKenFor people who want arithmetic and logic in one grid, with sizes from 3x3 to 7x7.
2048Easy to learn, tricky to master. Perfect for a five-minute break with a high score to chase.
Math PuzzlesGreat for kids and adults who want fast mental math practice with levels.
Number MemoryA two-minute test of how many digits you can hold in your head.Advertisement
Math games vs. number logic games
It helps to know which kind of number game you are opening.
- Number logic: Sudoku is a placement puzzle. The digits 1 to 9 could just as well be colors or letters. If you think you are "bad at math", Sudoku is still for you.
- Logic plus arithmetic: KenKen adds cages with targets like "12x" or "3-", so you need basic operations to narrow down each cell.
- Strategy with numbers: 2048 is about planning moves so that equal tiles meet. You only ever double numbers, but the strategy runs deep.
- Mental arithmetic: Math Puzzles offers timed sprints and equation-building challenges that directly practice calculation.
- Number memory: Number Memory tests working memory: how long a string of digits you can recall after it disappears.
How to get better at 2048 and KenKen
2048. Most strong players pick a corner and keep their highest tile there. Build a descending chain of tiles along one edge, and avoid the move that would pull your big tile out of its corner unless you have no choice. Undo is there to learn from, so use it to see what a different move would have done.
KenKen. Start with single-cell cages, which are simply given to you. Then look at cages whose target leaves few options: in a 4x4 grid, a two-cell "3+" cage can only be 1 and 2. Finally, remember that the Sudoku rule still applies, so each row and column contains every number exactly once.
Math Puzzles. Accuracy first, speed second. Once your answers are consistently right, your speed usually improves on its own with practice.
Number games for kids and families
Number games can make math practice feel less like homework. Math Puzzles has levels suited to children learning basic operations. A small 3x3 or 4x4 KenKen is a gentle way to combine addition with reasoning. 2048 quietly builds familiarity with powers of two, and older children often enjoy competing on Number Memory scores.
Short sessions tend to work better than long ones, and playing alongside a child and talking through moves is a good way to turn a game into learning. For more ideas, see our memory games and puzzle games.
Frequently asked questions
Do you need to be good at math to play Sudoku?
No. Sudoku uses numbers as symbols and involves no arithmetic. It is a pure logic puzzle about placing each digit once in every row, column and box.
What are the best number games for kids?
Math Puzzles is designed for mental math practice at different levels. Small KenKen grids and 2048 are also good choices for children who enjoy a challenge.
What is the best strategy for 2048?
Keep your largest tile in one corner and build a descending row of tiles along the edge beside it. Avoid moves that dislodge that corner tile, and try not to fill the board with small, unmatched numbers.
What is a normal score on Number Memory?
Number Memory measures your digit span, the number of digits you can repeat back. Psychology research has long put the typical adult span at around seven digits, give or take a couple, though it varies with practice, fatigue and focus.
Can number games improve mental math?
Regular practice with timed arithmetic, like in Math Puzzles, generally makes you faster and more accurate at the kinds of calculations you practice. Logic games like Sudoku exercise reasoning more than arithmetic.