r/mentalmath•
OM3X4

I Built a Website to Help You Learn Mental Math Faster

I’ve always been fascinated by how some people can do crazy fast calculations in their head. After learning a few mental math tricks myself, I realized that a lot of these techniques aren’t taught in school, even though they can save so much time.

So, I decided to build BrainsMath — a website where you can learn and practice mental math tricks interactively. It covers things like:

  • Finding what day of the week any date falls on in seconds 🗓️
  • Analyzing Your Data

https://preview.redd.it/a3gy63ptefne1.png?width=1920&format=png&auto=webp&s=f4b89e42a636ad863b5ad24892863781d36b7aa6

https://preview.redd.it/ztqusv4mefne1.png?width=1905&format=png&auto=webp&s=4225bff7a4a0e19750337601893fec14e42926a5

https://preview.redd.it/5cm9o0qkefne1.png?width=1900&format=png&auto=webp&s=34b84cecd1293205a1bcc5c656970266504d6d48

https://preview.redd.it/cyexrnrhefne1.png?width=1899&format=png&auto=webp&s=c9e08095d3d3a12be5e8f8765123f5a123e77048

  • Doing Calculations Fast
  • Squaring numbers instantly using simple patterns 🔢

It’s still a work in progress, but if you’re interested in improving your mental math skills, I’d love to hear your feedback! Let me know what you think. 😊

Check it out here 🚀

Posted Mar 8, 2025, 8:26 AM UTC

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