Addition and Subtraction

Addition and Subtraction

Practice simple addition and subtraction expression

  • Addition and Subtraction
  • Addition and Subtraction
  • Addition and Subtraction
What is Addition and Subtraction?
Addition and Subtraction is a browser extension that allows you to practice simple addition and subtraction expressions. With features like quick random expressions, various difficulty levels, and saving settings to the cloud, this extension provides an engaging and convenient way to improve your math skills.
Users: 10 ▼ -1
Version: 1.2 (Last updated: 2023-07-27)
Creation date: 2023-07-24
Risk impact: Very low risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 3
  • identity
  • storage
Size: 425.98K
Stats date:

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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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Risk impact

Addition and Subtraction is safe to use. It does not request any sensitive permissions.

Risk likelihood

Addition and Subtraction has earned a good reputation and can be trusted.

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