πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
11 + ? = 6
Answer: ______________
2? − 1 = 6
Answer: ______________
33 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
48 + ? = 10
Answer: ______________
57 − 6 = ? Think addition: 6 + ? = 7
Answer: ______________
6? + 7 = 10
Answer: ______________
7? + 6 = 7
Answer: ______________
85 + ? = 10
Answer: ______________
99 − ? = 8
Answer: ______________
10? + 2 = 3
Answer: ______________
11? − 3 = 4
Answer: ______________
12? + 1 = 6
Answer: ______________
Answer key: Missing numbers
- 1. 5
- 2. 7
- 3. 2
- 4. 2
- 5. 1
- 6. 3
- 7. 1
- 8. 5
- 9. 1
- 10. 1
- 11. 7
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number