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Puzzle: Cross out the numbers

This is a pure logic puzzle built around a simple but clever mechanic: on each grid, you connect pairs of identical numbers and then cross them out. The catch is that your line cannot pass through any other number, and every pair you remove changes the layout. What seems like an easy start quickly turns into a maze of choices, where one wrong match can leave you stuck. The game is perfect for short mental workouts, offering a calm but absorbing pace. There are no timers or pressure—just you and the numbers. With levels that ramp up in complexity, it tests your ability to think ahead and spot patterns. Whether you have a few minutes to spare or want to challenge yourself for longer, this puzzle rewards patience and careful planning.

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Play Puzzle: Cross out the numbersPuzzle: Cross out the numbers
Puzzle: Cross out the numbers

Common Core State Standards

Every game supports specific Common Core standards. Browse the full standards library.

MP3Argue with mathMP1Make sense of problemsMP7Use structureMP4Model with mathematicsMP2Reason abstractly1.G.A.1Shape attributesK.G.A.1Position words2.G.A.1Draw shapes with attributes

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2nd Grade · 3rd Grade · 4th Grade

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What is Puzzle: Cross out the numbers

Cross out the numbers is a turn-based logic challenge where you clear the grid by pairing identical digits, but every move demands forethought.

How to Play

Tap or click on one number, then tap on its matching number elsewhere on the board to draw a connecting line. The line must stay within the grid, make no sharp turns, and cannot pass through any other numbers.

Tips for Playing

  • Scan the whole board before making your first move to spot obvious pairs.
  • Try to clear numbers near the edges first to open up more paths.
  • Avoid covering a number that could be part of a future pair.
  • If a line would cross another number, look for an alternate route or delay that pair.
  • When stuck, undo your last move and consider a different matching order.

Frequently Asked Questions

What is the main objective in Cross out the numbers?

To remove every number from the grid by connecting each number with its matching counterpart using a line that follows specific rules.

Can a connecting line pass through other numbers?

No, the line cannot touch or cross any number that isn't the one you are connecting.

What happens if I make a wrong connection?

You can undo your last move or restart the level. There's no penalty for mistakes, so you can experiment freely.

Is the game difficult to finish?

Early levels are straightforward, but later stages can be quite challenging, requiring you to think several steps ahead.

Do I need to complete levels in order?

Yes, you progress level by level, and each completed stage unlocks the next one.

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