πagarwalmath · 3rd grade · Common Core MP.1
🚀 Challenge puzzles
Make sense of problems and keep at them (puzzles that need thinking, not a known method)
Name: ______________________Date: ____________
15 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
2The scale balances. How much does one 🍓 weigh?
Answer: ______________
36 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
4Every row, column, and diagonal makes 15. What number goes in the top right box?
Answer: ______________
5The scale balances. How much does one 🍐 weigh?
Answer: ______________
6The scale balances. How much does one 🍎 weigh?
Answer: ______________
7The scale balances. How much does one 🍎 weigh?
Answer: ______________
84 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
9The scale balances. How much does one 🍌 weigh?
Answer: ______________
103 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
11I think of a number. I multiply it by 2, then add 5. Now I have 13. What number did I start with?
Answer: ______________
12I think of a number. I multiply it by 3, then add 2. Now I have 26. What number did I start with?
Answer: ______________
Answer key: Challenge puzzles
- 1. 10 handshakes
- 2. 2
- 3. 15 handshakes
- 4. 6
- 5. 9
- 6. 7
- 7. 2
- 8. 6 handshakes
- 9. 2
- 10. 3 handshakes
- 11. 4
- 12. 8
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/3rd-grade/challenge-3