πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
110 − 4 = ? Think addition: 4 + ? = 10
Answer: ______________
29 − ? = 2
Answer: ______________
35 − ? = 3
Answer: ______________
47 − ? = 6
Answer: ______________
5? + 8 = 10
Answer: ______________
6? + 3 = 5
Answer: ______________
7? + 3 = 6
Answer: ______________
8? − 1 = 6
Answer: ______________
97 − 1 = ? Think addition: 1 + ? = 7
Answer: ______________
10? + 1 = 7
Answer: ______________
11? − 1 = 3
Answer: ______________
128 − ? = 7
Answer: ______________
Answer key: Missing numbers
- 1. 6
- 2. 7
- 3. 2
- 4. 1
- 5. 2
- 6. 2
- 7. 3
- 8. 7
- 9. 6
- 10. 6
- 11. 4
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number