πagarwalmath · 2nd 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 am a 2-digit number. My tens digit is 1 more than my ones digit. My digits add up to 9. What number am I?
Answer: ______________
2Each box hides one digit. 5☐ + ☐2 = 80. What is the first number?
Answer: ______________
3Two numbers add up to 35. The bigger one is 7 more than the smaller one. What is the bigger number?
Answer: ______________
4Two numbers add up to 36. The bigger one is 8 more than the smaller one. What is the bigger number?
Answer: ______________
5I am a 2-digit number. My tens digit is 1 more than my ones digit. My digits add up to 3. What number am I?
Answer: ______________
6I am a 2-digit number. My tens digit is 3 more than my ones digit. My digits add up to 9. What number am I?
Answer: ______________
7Two numbers add up to 38. The bigger one is 8 more than the smaller one. What is the bigger number?
Answer: ______________
8Each box hides one digit. 1☐ + ☐0 = 38. What is the first number?
Answer: ______________
9Each box hides one digit. 3☐ + ☐1 = 47. What is the first number?
Answer: ______________
10Each box hides one digit. 4☐ + ☐3 = 75. What is the first number?
Answer: ______________
11Each box hides one digit. 2☐ + ☐9 = 42. What is the first number?
Answer: ______________
12Each box hides one digit. 2☐ + ☐8 = 55. What is the first number?
Answer: ______________
Answer key: Challenge puzzles
- 1. 54
- 2. 58
- 3. 21
- 4. 22
- 5. 21
- 6. 63
- 7. 23
- 8. 18
- 9. 36
- 10. 42
- 11. 23
- 12. 27
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/2nd-grade/challenge-2