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Life & fun · April 25, 2025

Stay Sharp

The Chrome Extension for math nerds!

Stay Sharp launched on April 25, 2025 with 10 votes, #3,208 of 7,818 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 1 year on.

What it does

Turn every new tab into a quick math challenge and keep your numerical skills sharp! Stay Sharp is a minimalist Chrome Extension that replaces your new tab page with a math challenge. Each time you open a tab, you get a new arithmetic problem to solve.

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