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 8. Now I have 6. What number did I start with?
Answer: ______________
2I think of a number. I add 3, then take away 7. Now I have 8. What number did I start with?
Answer: ______________
3I think of a number. I add 2, then take away 8. Now I have 4. What number did I start with?
Answer: ______________
4What comes next? 18, 20, 22, 24, ?
Answer: ______________
5I am more than 24 and less than 28, and I am even. What number am I?
Answer: ______________
6I think of a number. I add 6, then take away 9. Now I have 1. What number did I start with?
Answer: ______________
7I think of a number. I add 2, then take away 3. Now I have 4. What number did I start with?
Answer: ______________
8I think of a number. I add 4, then take away 9. Now I have 2. What number did I start with?
Answer: ______________
9I think of a number. I add 2, then take away 5. Now I have 6. What number did I start with?
Answer: ______________
10What comes next? 3, 13, 23, 33, ?
Answer: ______________
11I think of a number. I add 6, then take away 3. Now I have 7. What number did I start with?
Answer: ______________
12I am more than 42 and less than 46, and I am even. What number am I?
Answer: ______________
Answer key: Challenge puzzles
- 1. 8
- 2. 12
- 3. 10
- 4. 26
- 5. 26
- 6. 4
- 7. 5
- 8. 7
- 9. 9
- 10. 43
- 11. 4
- 12. 44
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/challenge-1