Number Ninja

Awesome Arithmetricks — made interactive!

Based on Murderous Maths by Kjartan Poskitt

Phase 1: Number Ninja NOW

Awesome Arithmetricks — see how numbers REALLY work

✖️ Multiply 3 Ways See the same multiplication solved three totally different ways. Box Splitting, Number Line Jumps, and Stack & Multiply! PLAY NOW
🎯 Estimation Arena Guess the answer before you calculate — how close can you get? COMING SOON
🔢 Times Table Patterns Find the hidden patterns in the multiplication grid. The 9× table will blow your mind! COMING SOON
🏗️ Place Value Builder Drag digits to build numbers. Discover why zero is the weirdest number! COMING SOON
🍫 Long Division Quest Share chocolates fairly — and learn long division along the way! COMING SOON
💯 Percentage Playground See what percentages LOOK like. Discounts, test scores, recipes — all visual! COMING SOON
Phase 2: Brain Bender Lab NEXT

Guaranteed to Bend Your Brain — tricks, puzzles, and "how did THAT work?!"

🔲 Magic Square Builder Arrange numbers so every row, column, and diagonal adds to the same number! COMING SOON
🔍 Prime Detective Use the ancient Sieve of Eratosthenes to find every prime number up to 100! COMING SOON
Phase 3: Lucky Lab LATER

Do You Feel Lucky — roll dice, flip coins, discover probability

🎲 Dice Lab Roll a thousand dice and watch probability come alive! COMING SOON
🪙 Coin Flip Tracker Is a coin really fair? Flip it a thousand times and find out! COMING SOON
More games unlock as we read more books together! 📚