πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
13 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
27 − 3 = ? Think addition: 3 + ? = 7
Answer: ______________
38 − ? = 4
Answer: ______________
43 − 2 = ? Think addition: 2 + ? = 3
Answer: ______________
52 + ? = 3
Answer: ______________
61 + ? = 7
Answer: ______________
71 + ? = 10
Answer: ______________
8? − 3 = 5
Answer: ______________
9? − 3 = 1
Answer: ______________
107 − 4 = ? Think addition: 4 + ? = 7
Answer: ______________
114 − 3 = ? Think addition: 3 + ? = 4
Answer: ______________
12? + 2 = 10
Answer: ______________
Answer key: Missing numbers
- 1. 2
- 2. 4
- 3. 4
- 4. 1
- 5. 1
- 6. 6
- 7. 9
- 8. 8
- 9. 4
- 10. 3
- 11. 1
- 12. 8
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number