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: ____________
1What digit goes in the box? 2☐ + 4 = 27
Answer: ______________
2I think of a number. I add 2, then take away 6. Now I have 4. What number did I start with?
Answer: ______________
3What digit goes in the box? 3☐ + 8 = 38
Answer: ______________
4What digit goes in the box? 5☐ + 4 = 54
Answer: ______________
5What digit goes in the box? 4☐ + 8 = 48
Answer: ______________
6What digit goes in the box? 2☐ + 4 = 24
Answer: ______________
7What digit goes in the box? 2☐ + 9 = 29
Answer: ______________
8What digit goes in the box? 5☐ + 4 = 56
Answer: ______________
9I think of a number. I add 2, then take away 8. Now I have 5. What number did I start with?
Answer: ______________
10I think of a number. I add 4, then take away 5. Now I have 10. What number did I start with?
Answer: ______________
11I think of a number. I add 3, then take away 10. Now I have 4. What number did I start with?
Answer: ______________
12What digit goes in the box? 3☐ + 3 = 38
Answer: ______________
Answer key: Challenge puzzles
- 1. 3
- 2. 8
- 3. 0
- 4. 0
- 5. 0
- 6. 0
- 7. 0
- 8. 2
- 9. 11
- 10. 11
- 11. 11
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/challenge-1