πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? + 2 = 5
Answer: ______________
23 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
3? + 2 = 6
Answer: ______________
44 + ? = 9
Answer: ______________
5? − 1 = 7
Answer: ______________
6? − 1 = 6
Answer: ______________
74 − ? = 1
Answer: ______________
85 − ? = 2
Answer: ______________
91 + ? = 6
Answer: ______________
10? + 7 = 8
Answer: ______________
11? + 1 = 5
Answer: ______________
127 − ? = 4
Answer: ______________
Answer key: Missing numbers
- 1. 3
- 2. 2
- 3. 4
- 4. 5
- 5. 8
- 6. 7
- 7. 3
- 8. 3
- 9. 5
- 10. 1
- 11. 4
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number