Number Stax is a puzzle game to test your number skills!
Drop numbers and operators in the correct places to match the number or expression shown at the top of the screen to score. You can’t remove tiles but you can swap them around. You can freeze the game at any time, but remember to watch the clock! Eliminate tiles, score points, and earn bonuses and achievements for as long as possible until your grid is full! Remember, the longer you play the faster it gets. Share with your family and friends to see who can get the highest score.
Designed for ages 12-18 and adults too

Features include
• Versions for iPad / iPhone /iPod Touch
• Fast-paced arcade-like game experience
• Tutorial for Help and instruction
• Two game modes “Number Mode” and “Algebra Mode”
• Interface with Apple Game Center to publish player achievements and profile information
• Ten engaging levels of difficulty within each mode
• Achievements
• ‘Magic Tiles’ to earn, to hold, and to use
• “Time-out” bonuses
• Easy navigation
• Bold, bright graphics

What’s New

Version 1.4

Bug fixes and performance improvements

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Josef617 ,

Great learning app

My 8-year old is greatly enjoying this - and learning during play.

Nick’s iTunes ,

Great math app!

Fun app for challenging your math skills! My entire family loves it!


Houghton Mifflin Harcourt
27.4 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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