Cross Number: Logic Puzzle

Fill the grid, make the math work! 430 hand-crafted number puzzles from easy warm-ups to brain-bending challenges. Train your brain one square at a time.

Cross Number is a math crossword puzzle game that's easy to learn and hard to put down. Every level is a grid of interlocking equations with missing numbers — drag the right digits into the empty cells so that every row and column adds up. One wrong tile and the grid won't balance, so think before you drop!

It starts gently with simple addition and subtraction, then ramps up to multiplication, division, and sprawling grids where every equation shares numbers with its neighbors. Decoy tiles are mixed into your tray, so you can't just fill in the blanks — you have to reason your way through.

HOW TO PLAY • Look at the grid: each row and column is an equation (like 2 + 3 = 5) • Drag number tiles from your tray into the empty cells • Watch out — some tiles are decoys that don't belong anywhere • Complete every equation to solve the puzzle and earn up to 3 stars

FEATURES • 430 handcrafted-feel puzzle levels, generated to stay fresh and fair • 4 difficulty tiers: Easy, Medium, Hard, and Extra Hard • Smooth drag-and-drop gameplay designed for one hand • All four operations: addition, subtraction, multiplication, and division • Decoy numbers that turn every level into a logic puzzle, not just arithmetic • Hints for when you're stuck — use them wisely, they affect your stars • 3-star ratings on every level, so there's always a reason to replay • Share your results with friends • Optional sign-in with Google or Apple to keep your progress • Clean, colorful design with no clutter

GOOD FOR YOUR BRAIN Cross Number is more than a time-killer. Cross-number puzzles (also known as cross figures or math crosswords) exercise mental arithmetic, logical deduction, and working memory. A few levels a day keeps your number sense sharp — whether you're a student practicing math facts, an adult keeping your mind active, or just someone who loves Sudoku, kakuro, and crossword-style logic games.

PICK-UP-AND-PLAY No timers breathing down your neck. No lives to run out of. Play a quick level while waiting for coffee, or settle in for a long session untangling an Extra Hard grid. Your progress is saved automatically.

If you enjoy Sudoku, kakuro, crossmath, number crunch, or classic crossword puzzles, Cross Number will feel instantly familiar — and quickly become your new favorite.

Download Cross Number and start solving today. The first levels are easy... the last 200 are anything but.