How to play

You get 60 seconds and 3 lives. Each customer shows a bill and a tip rate — compute the tip amount or the bill + tip total. Type a dollar amount like 9.90 (the $ is optional).

• 1A correct answer scores +10 points. Streaks of 4 or more earn a bonus of +2 per streak level beyond 3 — keep the streak alive.
• 2A wrong answer costs 1 life, resets your streak, and shows a short explanation of why the correct answer is right.
• 3The game ends when the timer hits 0 or you lose all 3 lives. Bills start whole-dollar and easy (10%, 20%, 50%), then ramp to 15%/18%/20% and bills with cents.