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Addition and Subtraction

Addition and Subtraction


Addition and Subtraction is a browser extension that helps you practice simple addition and subtraction expression. It is like a quiz extension.


  • Quick random expressions
  • Easy, Medium, Hard, and Custom modes
  • Addition, Subtraction, or random operations
  • Save user settings to the cloud for access from other devices.
  • Leaderboard
  • Dark/Light theme
  • Open-source

if you need more feature on this app, highly requested to create an issue on our GitHub repository tab.

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App name: Addition and Subtraction
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