πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
14 + ? = 7
Answer: ______________
2? + 1 = 3
Answer: ______________
31 + ? = 3
Answer: ______________
45 − 4 = ? Think addition: 4 + ? = 5
Answer: ______________
5? − 8 = 1
Answer: ______________
610 − 8 = ? Think addition: 8 + ? = 10
Answer: ______________
76 − 3 = ? Think addition: 3 + ? = 6
Answer: ______________
8? − 3 = 5
Answer: ______________
92 + ? = 7
Answer: ______________
107 + ? = 9
Answer: ______________
11? + 2 = 4
Answer: ______________
12? + 5 = 8
Answer: ______________
Answer key: Missing numbers
- 1. 3
- 2. 2
- 3. 2
- 4. 1
- 5. 9
- 6. 2
- 7. 3
- 8. 8
- 9. 5
- 10. 2
- 11. 2
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number