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? 1☐ + 6 = 17
Answer: ______________
2What digit goes in the box? 5☐ + 7 = 59
Answer: ______________
3What digit goes in the box? 7☐ + 4 = 77
Answer: ______________
4What digit goes in the box? 6☐ + 5 = 68
Answer: ______________
5What digit goes in the box? 2☐ + 1 = 23
Answer: ______________
6I think of a number. I add 3, then take away 5. Now I have 3. What number did I start with?
Answer: ______________
7What digit goes in the box? 7☐ + 7 = 78
Answer: ______________
8What digit goes in the box? 5☐ + 4 = 59
Answer: ______________
9What digit goes in the box? 4☐ + 5 = 45
Answer: ______________
10I am more than 20 and less than 24, and I am even. What number am I?
Answer: ______________
11I think of a number. I add 3, then take away 1. Now I have 5. What number did I start with?
Answer: ______________
12I think of a number. I add 4, then take away 12. Now I have 2. What number did I start with?
Answer: ______________
Answer key: Challenge puzzles
- 1. 1
- 2. 2
- 3. 3
- 4. 3
- 5. 2
- 6. 5
- 7. 1
- 8. 5
- 9. 0
- 10. 22
- 11. 3
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/challenge-1