These problems are different.
They use the same math you already know — but wrapped in ways you haven't seen before. There's no rush. Think slowly. Write your reasoning. The answer matters less than HOW you got there.
🎨 Unfamiliar Territory
You have 3 bags that look the same. One is heavier. You have a balance scale. Can you find the heavy one in just ONE weighing?
Your thinking space:
🔗 Chain Reaction
Apple = 2 oranges. Orange = 3 grapes. How many grapes = 1 apple?
Show each step:
💬 Explain Your Thinking
A kilo of iron and a kilo of feathers. Which is heavier? Why does it FEEL like iron should be?
Explain in your own words:
🏆 Olympiad Teaser
8 identical-looking coins, 1 is lighter. Using a balance scale, find it in exactly 2 weighings.
Think about what constraints the problem gives you. Write down what you KNOW for sure, then work from there. Often, trying small numbers first reveals a pattern.
Your answer and reasoning: