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: ______________
3I think of a number. I multiply it by 2, then add 5. Now I have 9. What number did I start with?
Answer: ______________
43 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
54 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
6I think of a number. I multiply it by 4, then add 7. Now I have 15. What number did I start with?
Answer: ______________
76 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
8Every row, column, and diagonal makes 15. What number goes in the top right box?
Answer: ______________
9The scale balances. How much does one 🍓 weigh?
Answer: ______________
10The scale balances. How much does one 🍓 weigh?
Answer: ______________
11I think of a number. I multiply it by 2, then add 1. Now I have 9. What number did I start with?
Answer: ______________
12The scale balances. How much does one 🍎 weigh?
Answer: ______________
Answer key: Challenge puzzles
- 1. 10 handshakes
- 2. 4
- 3. 2
- 4. 3 handshakes
- 5. 6 handshakes
- 6. 2
- 7. 15 handshakes
- 8. 6
- 9. 4
- 10. 3
- 11. 4
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/3rd-grade/challenge-3