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
A roti maker stacks rotis in a peculiar way. She puts 1 roti on the first stack, 3 on the second, 5 on the third and so on. If she makes 6 stacks, how many rotis will she use in total?
Your thinking space:
🔗 Chain Reaction
Rahul has ₹25. He buys an ice cream for ₹12. Then his grandma gives him ₹10. He wants to buy a cricket bat that costs ₹40. How much more money does he need?
Show each step:
💬 Explain Your Thinking
Your friend says that 24 - 12 is the same as 12 - 24. Is your friend correct? Explain why or why not using pictures or objects.
Explain in your own words:
🏆 Olympiad Teaser
There are some birds sitting on a tree. If each bird gets one guava, there will be one guava left. If two birds share one guava, there will be one bird left. How many birds and guavas are there?
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: