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: ____________
16 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
2Every row, column, and diagonal makes 15. What number goes in the middle right box?
Answer: ______________
3I think of a number. I multiply it by 5, then add 8. Now I have 18. What number did I start with?
Answer: ______________
4Every row, column, and diagonal makes 15. What number goes in the middle right box?
Answer: ______________
53 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
6Every row, column, and diagonal makes 15. What number goes in the bottom middle box?
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
9I think of a number. I multiply it by 2, then add 1. Now I have 7. What number did I start with?
Answer: ______________
10I think of a number. I multiply it by 4, then add 8. Now I have 24. What number did I start with?
Answer: ______________
115 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
12The scale balances. How much does one 🍐 weigh?
Answer: ______________
Answer key: Challenge puzzles
- 1. 15 handshakes
- 2. 9
- 3. 2
- 4. 9
- 5. 3 handshakes
- 6. 7
- 7. 9
- 8. 6 handshakes
- 9. 3
- 10. 4
- 11. 10 handshakes
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/3rd-grade/challenge-3