The princess has been captured! 👸

An evil dragon has locked the princess in a castle far, far away. Only a brave knight who knows how to ROUND NUMBERS can save her! Run through the graveyard, the haunted forest, the frozen cliffs, and the lava bridge, collecting coins on the way. Defeat 50 monsters with your math skills, enter the castle, and rescue the princess!

🏃 Move and jumpUse ← → (or A D) to run and Space or ↑ to jump over tombstones, fences, and pits. On a tablet, use the buttons under the game.
⚔️ Battle monstersMonsters block the path, so you can't jump over them or sneak past. Touch a monster and the battle begins! Answer the rounding question correctly to defeat it.
🛡️ Watch your armorA wrong answer or a fall into a hole knocks off a piece of armor: first your armor, then your helmet. After 3 hits, the quest starts over from the beginning.
🪙 Grab the coinsJump to collect gold coins. Every 60 coins repairs one lost piece of armor! Beat monsters for more coins, and answer 3 in a row for a streak bonus.
🏰 Save the princessBeat all 50 monsters to open the castle gate, go inside, and save the princess! The dragon boss takes 3 hits, and he fights back, so keep your shield ready!
🎵 MusicThe music gets more intense in each new zone. Listen for a special song inside the castle! Use the 🎵 button under the game to turn music on or off.

🧠 The rounding rule

1. FIND the place you're rounding to.
2. LOOK NEXT DOOR at the digit to its right.
3. 5 OR MORE → ROUND UP! ⬆
   4 OR LESS → STAY THE SAME! ➡
4. Everything after becomes 0.

Example: Round 3,468 to the nearest hundred. The hundreds digit is 4. Next door is 6. Since 6 is 5 or more, round up: 3,500.

You'll round to the nearest ten, hundred, thousand, and one (whole number). Stuck in a battle? Press 💡 Hint!