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: ____________
1I think of a number. I multiply it by 5, then add 8. Now I have 38. What number did I start with?
Answer: ______________
2Every row, column, and diagonal makes 15. What number goes in the bottom left box?
Answer: ______________
36 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
45 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
6The scale balances. How much does one 🍊 weigh?
Answer: ______________
7The scale balances. How much does one 🍎 weigh?
Answer: ______________
8The scale balances. How much does one 🍓 weigh?
Answer: ______________
9Every row, column, and diagonal makes 15. What number goes in the top middle box?
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 3, then add 5. Now I have 20. What number did I start with?
Answer: ______________
12The scale balances. How much does one 🍓 weigh?
Answer: ______________
Answer key: Challenge puzzles
- 1. 6
- 2. 8
- 3. 15 handshakes
- 4. 10 handshakes
- 5. 6 handshakes
- 6. 7
- 7. 9
- 8. 3
- 9. 1
- 10. 3 handshakes
- 11. 5
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/3rd-grade/challenge-3