JAWNA جوّنا العربية Open JAWNA

Math Grid Online

Math Grid Online on JAWNA

Play Math Grid free on JAWNA with friends in a browser, no download. Share a private table link, enjoy voice chat, or use the iPhone and Android app.

JAWNA › Games › Math Grid

Why play Math Grid on JAWNA?

Math Grid: goal and players

Play Math Grid online on JAWNA at jawna.app. Check the goal and supported player counts before inviting your group. Read the rules even if you know the game: familiar names can have different variants, and your usual house rules may differ from the selected version.

Supported table sizes: 2, 3 or 4 players. Choose a player count in the game settings. In partner variants, check seats and teams first. In individual formats, each player competes for their own result. The in-game How to play screen provides details. Agree on the variant before your first round together.

How to play: rules

  1. Fill the grid so every row and every column has each number from 1 to the grid size (1 to 4, 5 or 6) exactly once.
  2. The heavy lines mark cages. Each cage shows a target and a sign: its numbers must make the target with that sign. + adds them all, × multiplies them all, − is the bigger minus the smaller, ÷ is the bigger divided by the smaller. A cage with no sign is just that number.
  3. A number may repeat inside a cage as long as it is not twice in the same row or column.
  4. Everyone gets the same puzzle at the same moment and plays at once. The first to fill the whole grid wins.
  5. Tap a square, then a number. Every number is checked straight away: a right one locks in place, a wrong one turns red and costs a heart. Lose all 3 hearts and you are out of the race (you can keep watching).
  6. Turn on Notes to pencil small possible numbers into a square. Notes are only on your phone.
  7. You see how far the others are and how many hearts they have, never their numbers.
  8. When the clock runs out (6, 12 or 20 minutes), players still in are ranked by progress, then those who ran out of hearts.
  9. Every puzzle has exactly one answer and can be solved by logic alone, no guessing.

Scoring and winning

The heavy lines mark cages. Each cage shows a target and a sign: its numbers must make the target with that sign. + adds them all, × multiplies them all, − is the bigger minus the smaller, ÷ is the bigger divided by the smaller. A cage with no sign is just that number.

Everyone gets the same puzzle at the same moment and plays at once. The first to fill the whole grid wins.

Tips and strategy

Check the win condition and the legal options before each move. Rules and results depend on the selected mode; agree on the format before starting.

Frequently asked questions

Where can I play Math Grid online with a mic?

On JAWNA (jawna.app). Every Math Grid table has a mic and voice chat, so you talk to the players while you play.

Where can I play Math Grid with new people?

On JAWNA pick Math Grid and tap Quick match to get players fast, or make a private table for your friends.

Do I need to download an app to play Math Grid?

No. Open jawna.app in the browser on your phone or computer and play right away. There is also a JAWNA phone app if you like.

Is there a free app for Math Grid?

You can start on JAWNA and play in a browser for free. Optional in-app extras are available; review any purchase option before choosing it. The download page lists current mobile installation options.

How many people can play Math Grid on JAWNA?

The available player counts are 2, 3 or 4 players. Pick the format that fits your group before starting; a game with multiple supported sizes does not necessarily support every number between them.

How do you win at Math Grid?

Every puzzle has exactly one answer and can be solved by logic alone, no guessing.

How do I invite friends to Math Grid?

Create a private table from the game and share its link with friends. Check that everyone has chosen the same game and the seats suit your group before starting, particularly when a partner is involved.

Do I have to use my microphone?

Table voice chat is available when you allow microphone access. Check your microphone and mute state before talking, and respect the other players’ privacy and the community rules.

Are the Math Grid rules the same as our house rules?

Some details or variants may differ. Read the summary and the in-game How to play screen together, then agree on the variant. The rules of the selected mode determine the round.

Can a beginner learn Math Grid on JAWNA?

Start with the instructions and play with friends who know the game. Understand the goal and scoring before concentrating on advanced moves or speed.

Where can I find other games for my group?

Open JAWNA’s games directory and choose by player count and game idea. There are card games, board games and puzzles, so you can switch according to your time, group size and preferred challenge.

Start a session with friends

Use Play now, sign in, then choose a private table and share its link, or select Quick match where available.

Related games

Card games · Board games

How to play – step by step

  1. Each number once – Every row and every column has each number from 1 to the grid size once. Here a 4×4 uses 1 to 4.
  2. Cages make the target – Heavy lines mark cages. Their numbers make the target with the sign: + adds, × multiplies, − and ÷ use the bigger number first. A number may repeat in a cage if not in the same line.
  3. Square, then number – Tap a square, then a number. A right one locks in; a wrong one turns red and costs a heart.
  4. Fill it first – Everyone gets the same puzzle at once. The first to fill the whole grid wins. When time runs out, the furthest along wins.

Try the interactive tutorial in the app

History & origins

Math Grid follows the arithmetic-cage puzzle family made widely known by KenKen, created by Japanese teacher Tetsuya Miyamoto in 2004.

It combines a Latin-square grid with small regions labelled by arithmetic targets, bringing calculation into a Sudoku-like structure.

Jawna generates its own boards and lets players race on the same puzzle. The historical attribution concerns the related puzzle family, not the Jawna title.

Source