πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
18 − 6 = ? Think addition: 6 + ? = 8
Answer: ______________
2? − 2 = 4
Answer: ______________
37 − 4 = ? Think addition: 4 + ? = 7
Answer: ______________
4? + 7 = 8
Answer: ______________
51 + ? = 5
Answer: ______________
6? + 3 = 7
Answer: ______________
78 − 7 = ? Think addition: 7 + ? = 8
Answer: ______________
89 − ? = 1
Answer: ______________
97 − ? = 3
Answer: ______________
106 − ? = 1
Answer: ______________
111 + ? = 3
Answer: ______________
12? − 1 = 5
Answer: ______________
Answer key: Missing numbers
- 1. 2
- 2. 6
- 3. 3
- 4. 1
- 5. 4
- 6. 4
- 7. 1
- 8. 8
- 9. 4
- 10. 5
- 11. 2
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number