The latest articles on DEV Community by Code6 (@codebehind_10a5be0a48e848). https://dev.to/codebehind_10a5be0a48e848 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3802357%2Fbf3e99cb-569c-4524-8647-754db36f6a6f.png https://dev.to/codebehind_10a5be0a48e848 en Code6 Mon, 02 Mar 2026 19:53:19 +0000 https://dev.to/codebehind_10a5be0a48e848/free-math-game-for-kids-1n08 https://dev.to/codebehind_10a5be0a48e848/free-math-game-for-kids-1n08 <p>My 8-year-old was struggling with times tables last year. I tried a bunch of math apps but they were either full of ads, required accounts, or let kids just guess without understanding what they're doing.<br> So I built NumWiz: a Progressive Web App that practices all 4 basic operations (addition, subtraction, multiplication, division) and requires kids to show their reasoning step by step.</p> <p>What makes it different:</p> <ul> <li>Kids can't just guess the answer: they need to show HOW they got there</li> <li>Works offline (installable PWA)</li> <li>3 languages: English, Polish, Spanish</li> <li>No accounts, no ads, no tracking</li> <li>Completely free</li> </ul> <p>I also wrote a blog with practical guides for parents: how to teach times tables, bridging through tens, teaching division, etc.</p> <p>🎮 <a href="https://numwiz.net" rel="noopener noreferrer">https://numwiz.net</a><br> 📝 Blog: <a href="https://numwiz.net/blog/" rel="noopener noreferrer">https://numwiz.net/blog/</a></p> learning showdev sideprojects webdev