Addition and Subtraction in Chrome with OffiDocs

DESCRIPTION

Run the Chrome online web store extension Addition and Subtraction using OffiDocs Chromium online.

Practice simple addition and subtraction expression

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

FEATURES
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- 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 https://github.com/biplobsd/as/issues tab.

Read more:
https://github.com/biplobsd/as/blob/main/README.md
https://biplobsd.me/apps/view/as.md

Addition and Subtraction web extension integrated with the OffiDocs Chromium online