πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? + 1 = 3
Answer: ______________
21 + ? = 5
Answer: ______________
3? + 1 = 7
Answer: ______________
4? + 2 = 6
Answer: ______________
54 − 1 = ? Think addition: 1 + ? = 4
Answer: ______________
63 + ? = 9
Answer: ______________
76 + ? = 10
Answer: ______________
8? + 1 = 4
Answer: ______________
95 − 3 = ? Think addition: 3 + ? = 5
Answer: ______________
102 + ? = 9
Answer: ______________
116 − ? = 5
Answer: ______________
123 + ? = 6
Answer: ______________
Answer key: Missing numbers
- 1. 2
- 2. 4
- 3. 6
- 4. 4
- 5. 3
- 6. 6
- 7. 4
- 8. 3
- 9. 2
- 10. 7
- 11. 1
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number