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 think of a number. I add 6, then take away 7. Now I have 3. What number did I start with?
Answer: ______________
2I am more than 13 and less than 17, and I am odd. What number am I?
Answer: ______________
3What comes next? 14, 24, 34, 44, ?
Answer: ______________
4What comes next? 3, 8, 13, 18, ?
Answer: ______________
5I think of a number. I add 2, then take away 1. Now I have 4. What number did I start with?
Answer: ______________
6I think of a number. I add 4, then take away 1. Now I have 15. What number did I start with?
Answer: ______________
7I think of a number. I add 4, then take away 3. Now I have 13. What number did I start with?
Answer: ______________
8I think of a number. I add 5, then take away 6. Now I have 3. What number did I start with?
Answer: ______________
9I think of a number. I add 5, then take away 7. Now I have 4. What number did I start with?
Answer: ______________
10I think of a number. I add 6, then take away 2. Now I have 13. What number did I start with?
Answer: ______________
11I think of a number. I add 3, then take away 4. Now I have 4. What number did I start with?
Answer: ______________
12I think of a number. I add 6, then take away 5. Now I have 7. What number did I start with?
Answer: ______________
Answer key: Challenge puzzles
- 1. 4
- 2. 15
- 3. 54
- 4. 23
- 5. 3
- 6. 12
- 7. 12
- 8. 4
- 9. 6
- 10. 9
- 11. 5
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/challenge-1