Math Crossword Puzzle: How to Play Cross Math Free

A math crossword puzzle swaps word clues for arithmetic. Instead of filling in vocabulary, you drop numbers into a grid where every row and every column is a small equation that has to come out right. On Puzzit you can play one free in your browser as Cross Math: 3,600 levels plus a Daily puzzle, no download and no sign-up.

This guide explains exactly how the game works, walks through a real level step by step, and gives you the solving tricks that make even the busy grids feel manageable. If you like quick number puzzles that reward thinking over speed-typing, Cross Math is one of the best ways to warm up your mental math.

What Is a Math Crossword Puzzle?

A math crossword (often called cross math, a cross-figure or a crossnumber) borrows the shape of the classic newspaper crossword. Arthur Wynne's first "word-cross" appeared in 1913, and puzzle writers have been swapping its words for numbers ever since. In the modern app-style version, you get a grid of equations that cross each other, a few numbers already printed in, and a bank of loose numbers to place.

The twist that makes it a puzzle rather than a worksheet is the crossing. A blank square often belongs to two equations at once, one across and one down, so the number you put there has to satisfy both. That double constraint is what lets you reason your way to the answer instead of guessing.

How to Play Cross Math on Puzzit

Open Cross Math and you land on Level 1 of 3,600, with a timer running in the corner. Switch to the Daily tab for the puzzle of the day. Here is the loop:

1. Read the grid. Each line is an equation of numbers, operators (+, −, ×, ÷) and an equals sign. Target results are printed in red.
2. Look at the number bank. Under the grid sits Drag Numbers, a set of tiles. The bank holds exactly the numbers you need, one tile per empty square.
3. Place a number. Drag a tile into an empty white square, or tap the tile and then tap the square. On a phone the tap-tap method is the quickest.
4. Satisfy both directions. A number in a crossing square must work for its row and its column at the same time.
5. Finish the board. When every square is filled correctly, a Solved message appears and a Next Level button takes you on. Made a mess? Hit Reset.

The Stats button tracks levels solved, daily puzzles completed, perfect solves, your best streak, and your best and average times, which makes it easy to see yourself getting faster.

Worked Example: Solving Level 1

Level 1 is a nice demonstration of how crossing equations unlock each other. The grid shows 1 + 50 = 51 across the top, and the bank holds 17, 32, 70, 68 and 8. The other equations are partly blank:

• Down from 51: 51 + ? = ?
• Across the middle: ? + 2 = ?
• Down on the right: ? + ? = 78
• Across the bottom: 2 + 6 = ? + ? = 40 (two equations sharing a square)

Start where the arithmetic is fully known. 2 + 6 = 8, so the 8 goes in the shared square. That square is also the first number of the next equation, so 8 + ? = 40 gives 32. The 8 is part of the right-hand column too, so ? + 8 = 78 means the square above it is 70. Now the middle row reads ? + 2 = 70, which makes the left square 68. Finally, 51 + ? = 68 gives 17. Every tile is used once and every equation balances: solved in about half a minute.

Notice the pattern: one easy equation (2 + 6) gave a number that fed three other equations. That chain reaction is the heart of every math crossword.

Cross Math Tips and Strategy

1. Start with fully known equations

Scan for any line that has every number except one. It is a one-step calculation, and the result usually sits on a crossing square that opens up the next line.

2. Prioritize × and ÷

Multiplication and division have far fewer possibilities than addition. If a line reads ? × ? = 36 and your bank is 5, 9, 13 and 4, the only factor pair available is 4 and 9. Division works the same way: ? ÷ 4 = 9 can only be 36.

3. Work backwards from the result

Rearrange the equation in your head. ? + 27 = 63 is really 63 − 27 = 36, and 3 × ? = 12 is 12 ÷ 3 = 4. Inverse operations turn a guess into a lookup.

4. Use last digits and parity

For addition and subtraction, the units digit gives you a fast filter. In ? + 27 = 63 the answer must end in 6, so you can rule out most of the bank at a glance. Odd and even help too: two odd numbers always add up to an even number.

5. Let the bank do the work

Because the bank holds exactly one tile per blank, it is also a list of answers. When one tile is left, the last square is fixed. If a tile fits nowhere you have tried, a number you already placed is probably wrong.

6. Attack crossing squares

A square on two equations has two constraints, so it has the fewest options. Solve those first and both lines collapse together, exactly as the 8 did in Level 1.

Cross Math vs Other Number Puzzles

Sudoku uses digits as symbols, so you never actually add anything. KenKen, created by Japanese teacher Tetsuya Miyamoto, mixes sudoku placement with arithmetic cages. Cross Math sits closer to a real equation sheet: every line is a sum you could check on a calculator. If you enjoy guessing whole equations, our Mathle guide explains how the math Wordle works.

Why Math Crossword Puzzles Are Worth Playing

Cross Math is quiet mental-math practice dressed up as a puzzle. Each level asks you to add, subtract, multiply and divide, but also to plan: which equation unlocks the others, which tile cannot go where. Kids get number-fact repetition without a worksheet, and adults get a short brain workout that fits into a coffee break.

The Daily puzzle gives you one shared challenge a day, while the 3,600 levels let you binge. For more brain-stretching ideas, see our roundup of math and logic puzzles.

More Free Number Games Like Cross Math

• Mathle: guess the hidden equation in six tries.
• Calculator Game: hit the target number with a limited set of buttons and moves.
• Sumcade: pick three or more numbers that add up to the target.
• Match 10: clear pairs that are equal or add up to 10.
• Math Flash Cards: rapid-fire arithmetic with four answer choices.
• High Tile: merge numbers to build the highest tile (read the guide).

Math Crossword Puzzle FAQ

How do you play a math crossword puzzle?

Fill each empty square with a number so that every row and every column becomes a true equation. On Puzzit's Cross Math you drag or tap numbers from the bank below the grid into the blank squares until every equation balances and the level shows Solved.

Is Cross Math free online?

Yes. Cross Math on Puzzit is free to play in any browser on phone, tablet or computer, with no download, no app and no account.

Is there a daily cross math puzzle?

Yes. Open the Daily tab in Cross Math for the puzzle of the day, or use the Levels tab to work through 3,600 numbered levels.

What is the trick to solving cross math puzzles?

Start with any equation that is missing only one number, then use that answer on the crossing line. Prioritize multiplication and division, work backwards with inverse operations, and remember the bank holds exactly the numbers you need.

Where can I find the answers to a cross math puzzle?

Every level has exactly the numbers you need in the bank, so you can always check an answer by doing the arithmetic. If the level will not complete, recalculate it in reverse, or press Reset and start from the most constrained equation.

Is cross math good for kids?

It is great practice for addition, subtraction, multiplication and division, and the drag-and-drop controls are easy on touchscreens. Early levels use simple sums, which makes it a friendly first logic puzzle.

Ready to Balance Some Equations?

Open Cross Math on Puzzit, solve Level 1 in under a minute, then try the Daily puzzle and see whether you can keep your streak going. When you want a change of pace, browse all of our free number games.