πagarwalmath · 1st 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 more than 40 and less than 44, and I am even. What number am I?
Answer: ______________
2I think of a number. I add 6, then take away 3. Now I have 14. What number did I start with?
Answer: ______________
3What comes next? 18, 28, 38, 48, ?
Answer: ______________
4I think of a number. I add 2, then take away 4. Now I have 10. What number did I start with?
Answer: ______________
5I think of a number. I add 4, then take away 11. Now I have 4. What number did I start with?
Answer: ______________
6I think of a number. I add 2, then take away 8. Now I have 3. What number did I start with?
Answer: ______________
7I think of a number. I add 2, then take away 7. Now I have 1. What number did I start with?
Answer: ______________
8I think of a number. I add 4, then take away 6. Now I have 10. What number did I start with?
Answer: ______________
9I think of a number. I add 3, then take away 7. Now I have 5. What number did I start with?
Answer: ______________
10I think of a number. I add 4, then take away 1. Now I have 15. What number did I start with?
Answer: ______________
11I think of a number. I add 3, then take away 4. Now I have 11. What number did I start with?
Answer: ______________
12I think of a number. I add 6, then take away 1. Now I have 11. What number did I start with?
Answer: ______________
Answer key: Challenge puzzles
- 1. 42
- 2. 11
- 3. 58
- 4. 12
- 5. 11
- 6. 9
- 7. 6
- 8. 12
- 9. 9
- 10. 12
- 11. 12
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/challenge-1