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 4, then take away 9. Now I have 2. What number did I start with?
Answer: ______________
2What comes next? 15, 20, 25, 30, ?
Answer: ______________
3I think of a number. I add 5, then take away 6. Now I have 9. What number did I start with?
Answer: ______________
4I think of a number. I add 6, then take away 5. Now I have 10. What number did I start with?
Answer: ______________
5I think of a number. I add 5, then take away 15. Now I have 2. What number did I start with?
Answer: ______________
6I think of a number. I add 4, then take away 12. Now I have 3. What number did I start with?
Answer: ______________
7What comes next? 19, 24, 29, 34, ?
Answer: ______________
8I think of a number. I add 6, then take away 4. Now I have 12. What number did I start with?
Answer: ______________
9I think of a number. I add 3, then take away 2. Now I have 3. What number did I start with?
Answer: ______________
10I think of a number. I add 4, then take away 1. Now I have 11. What number did I start with?
Answer: ______________
11I think of a number. I add 3, then take away 5. Now I have 6. What number did I start with?
Answer: ______________
12I think of a number. I add 6, then take away 1. Now I have 10. What number did I start with?
Answer: ______________
Answer key: Challenge puzzles
- 1. 7
- 2. 35
- 3. 10
- 4. 9
- 5. 12
- 6. 11
- 7. 39
- 8. 10
- 9. 2
- 10. 8
- 11. 8
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/challenge-1