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: ____________
13 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
2What digit goes in the box? ☐3 × 2 = 46
Answer: ______________
3Every row, column, and diagonal makes 15. What number goes in the middle right box?
Answer: ______________
44 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 5, then add 3. Now I have 43. What number did I start with?
Answer: ______________
6I think of a number. I multiply it by 2, then add 5. Now I have 21. What number did I start with?
Answer: ______________
7Every row, column, and diagonal makes 15. What number goes in the middle left box?
Answer: ______________
8What digit goes in the box? 2☐ × 4 = 88
Answer: ______________
9I think of a number. I multiply it by 3, then add 2. Now I have 14. What number did I start with?
Answer: ______________
10I think of a number. I multiply it by 2, then add 7. Now I have 17. What number did I start with?
Answer: ______________
11What digit goes in the box? 2☐ × 4 = 108
Answer: ______________
12Every row, column, and diagonal makes 15. What number goes in the middle left box?
Answer: ______________
Answer key: Challenge puzzles
- 1. 3 handshakes
- 2. 2
- 3. 9
- 4. 6 handshakes
- 5. 8
- 6. 8
- 7. 9
- 8. 2
- 9. 4
- 10. 5
- 11. 7
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/3rd-grade/challenge-3