πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
18 − 5 = ? Think addition: 5 + ? = 8
Answer: ______________
25 + ? = 7
Answer: ______________
31 + ? = 5
Answer: ______________
49 − ? = 3
Answer: ______________
54 − ? = 3
Answer: ______________
67 − 2 = ? Think addition: 2 + ? = 7
Answer: ______________
7? − 6 = 2
Answer: ______________
8? + 1 = 6
Answer: ______________
94 − ? = 1
Answer: ______________
10? + 2 = 4
Answer: ______________
11? − 2 = 1
Answer: ______________
12? + 2 = 3
Answer: ______________
Answer key: Missing numbers
- 1. 3
- 2. 2
- 3. 4
- 4. 6
- 5. 1
- 6. 5
- 7. 8
- 8. 5
- 9. 3
- 10. 2
- 11. 3
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number