Place Value Explorer

A collection of interactive math games for kids learning place value, number comparison, and rounding.

Games

• Match Maker — Set each digit to match a target number using up/down controls or keyboard
• Value Decoder — Identify the value of a highlighted digit in a number
• Number Clash — Compare two numbers using <, =, or > (with a drag-and-drop alignment workpad)
• Number Rounder — Round numbers to the nearest ten, hundred, thousand, or ten thousand

Features

• Full keyboard support (arrow keys, digit typing, Enter to submit)
• Star streak scoring across all games
• Responsive design for desktop and mobile
• Confetti celebrations on correct answers

Running Locally

Prerequisites: Node.js 18+

npm install
npm run dev

Build

npm run build

Output goes to dist/.