Square Number Survival
Health
Score0
Wave1
Streak0
Click the number or press SPACE to start / restart
Tap the perfect squares to stay alive
Hey Harper, ready to zap some squares?
Square numbers are numbers like 4, 9 and 16 that come from multiplying a whole number by itself. For example, 4 = 2 × 2.
Your mission: blast the square-number orbs before they escape the grid. Wrong clicks and missed squares hurt your health bar.
Click square numbers (4, 9, 16, 25...)
Ignore the impostor numbers
Health drops on mistakes & missed squares
Survive as the waves speed up!
🏷️
Price Tag Panic: Arcade
Combo Mode
Drag the correct price tag onto each item after discount. Build streaks to boost your score; wrong drops cost time and hearts.
💡 Pro tip: find 10% first, then build from there.
⭐ Score: 0
🔥 Streak: 0
🏆 Best: 0
💖 💗💗💗
Harper's Book Log
Write your thoughts and 5 fun words!
New Entry
My Book Log
⏱️ Times Tables Speed Tester
Tap the button or press Space/Enter for the active table. Press R to reset the active table. Each tap logs the total time so far and the time since your last answer, up to 12 × n.