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 3, then add 1. Now I have 13. What number did I start with?
Answer: ______________
23 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
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 middle left box?
Answer: ______________
5Every row, column, and diagonal makes 15. What number goes in the middle left box?
Answer: ______________
64 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
7The scale balances. How much does one 🍓 weigh?
Answer: ______________
8I think of a number. I multiply it by 5, then add 7. Now I have 47. What number did I start with?
Answer: ______________
95 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
10The scale balances. How much does one 🍎 weigh?
Answer: ______________
11I think of a number. I multiply it by 4, then add 5. Now I have 41. What number did I start with?
Answer: ______________
12Every row, column, and diagonal makes 15. What number goes in the top left box?
Answer: ______________
Answer key: Challenge puzzles
- 1. 4
- 2. 3 handshakes
- 3. 15 handshakes
- 4. 7
- 5. 9
- 6. 6 handshakes
- 7. 8
- 8. 8
- 9. 10 handshakes
- 10. 9
- 11. 9
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/3rd-grade/challenge-3