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: ____________
14 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: ______________
33 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
46 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
5I think of a number. I multiply it by 4, then add 4. Now I have 12. What number did I start with?
Answer: ______________
6Every row, column, and diagonal makes 15. What number goes in the top middle box?
Answer: ______________
7I think of a number. I multiply it by 2, then add 9. Now I have 25. What number did I start with?
Answer: ______________
8I think of a number. I multiply it by 4, then add 3. Now I have 27. What number did I start with?
Answer: ______________
9I think of a number. I multiply it by 5, then add 2. Now I have 27. What number did I start with?
Answer: ______________
105 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
11The scale balances. How much does one 🍊 weigh?
Answer: ______________
12I think of a number. I multiply it by 4, then add 6. Now I have 18. What number did I start with?
Answer: ______________
Answer key: Challenge puzzles
- 1. 6 handshakes
- 2. 6
- 3. 3 handshakes
- 4. 15 handshakes
- 5. 2
- 6. 7
- 7. 8
- 8. 6
- 9. 5
- 10. 10 handshakes
- 11. 5
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/3rd-grade/challenge-3