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 5, then take away 3. Now I have 9. What number did I start with?
Answer: ______________
2The scale balances. How much does one 🍓 weigh?
Answer: ______________
3I think of a number. I add 4, then take away 2. Now I have 12. What number did I start with?
Answer: ______________
4I think of a number. I add 2, then take away 5. Now I have 4. What number did I start with?
Answer: ______________
5I think of a number. I add 3, then take away 13. Now I have 1. What number did I start with?
Answer: ______________
6I think of a number. I add 6, then take away 4. Now I have 7. What number did I start with?
Answer: ______________
7I think of a number. I add 6, then take away 7. Now I have 4. What number did I start with?
Answer: ______________
8I think of a number. I add 4, then take away 5. Now I have 7. What number did I start with?
Answer: ______________
9I think of a number. I add 5, then take away 2. Now I have 13. What number did I start with?
Answer: ______________
10I think of a number. I add 2, then take away 7. Now I have 4. What number did I start with?
Answer: ______________
11I think of a number. I add 4, then take away 3. Now I have 7. What number did I start with?
Answer: ______________
12I think of a number. I add 4, then take away 3. Now I have 5. What number did I start with?
Answer: ______________
Answer key: Challenge puzzles
- 1. 7
- 2. 5
- 3. 10
- 4. 7
- 5. 11
- 6. 5
- 7. 5
- 8. 8
- 9. 10
- 10. 9
- 11. 6
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/challenge-1