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: ____________
1What digit goes in the box? ☐1 × 4 = 84
Answer: ______________
24 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
3What digit goes in the box? ☐7 × 3 = 51
Answer: ______________
4What digit goes in the box? ☐6 × 3 = 78
Answer: ______________
5What digit goes in the box? 1☐ × 4 = 72
Answer: ______________
6What digit goes in the box? 1☐ × 3 = 42
Answer: ______________
7What digit goes in the box? ☐5 × 2 = 50
Answer: ______________
86 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
95 friends meet. Each friend shakes hands with every other friend once. How many handshakes are there?
Answer: ______________ handshakes
10What digit goes in the box? ☐1 × 2 = 42
Answer: ______________
11I think of a number. I multiply it by 5, then add 9. Now I have 29. What number did I start with?
Answer: ______________
12What digit goes in the box? 2☐ × 3 = 60
Answer: ______________
Answer key: Challenge puzzles
- 1. 2
- 2. 6 handshakes
- 3. 1
- 4. 2
- 5. 8
- 6. 4
- 7. 2
- 8. 15 handshakes
- 9. 10 handshakes
- 10. 2
- 11. 4
- 12. 0
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/3rd-grade/challenge-3