"No!" said Petya. "I need to make a full 1,000-gram kilogram!" 🏆 The Grand Opening
Once upon a time, in the digital kingdom of , lived a young explorer named Petya . Petya was a 3rd grader who loved the "21st Century" program because it taught him that math wasn't just about counting—it was about solving mysteries.
One morning, Petya received a holographic letter from the . The letter said: "Help! Our city gates are locked by a three-digit code. To find the code, you must solve the Triple Challenge!" 🧩 Challenge 1: The Rounding Bridge
At the final gate, there were two scales. One side had a weight of . The other side had 4 weights of 200 grams each . "Is it balanced?" the Gatekeeper asked. Petya calculated:
Understanding the relationship between grams and kilograms.
