πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
15 + ? = 10
Answer: ______________
26 + ? = 10
Answer: ______________
31 + ? = 4
Answer: ______________
42 + ? = 10
Answer: ______________
56 + ? = 7
Answer: ______________
62 + ? = 3
Answer: ______________
71 + ? = 5
Answer: ______________
81 + ? = 7
Answer: ______________
98 + ? = 10
Answer: ______________
105 + ? = 9
Answer: ______________
112 + ? = 4
Answer: ______________
122 + ? = 5
Answer: ______________
Answer key: Missing numbers
- 1. 5
- 2. 4
- 3. 3
- 4. 8
- 5. 1
- 6. 1
- 7. 4
- 8. 6
- 9. 2
- 10. 4
- 11. 2
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number