πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
11 + ? = 3
Answer: ______________
29 − 5 = ? Think addition: 5 + ? = 9
Answer: ______________
3? + 7 = 10
Answer: ______________
43 + ? = 10
Answer: ______________
5? + 1 = 5
Answer: ______________
62 + ? = 3
Answer: ______________
7? + 1 = 3
Answer: ______________
83 − ? = 1
Answer: ______________
95 − 2 = ? Think addition: 2 + ? = 5
Answer: ______________
104 − 1 = ? Think addition: 1 + ? = 4
Answer: ______________
11? + 3 = 7
Answer: ______________
12? + 4 = 8
Answer: ______________
Answer key: Missing numbers
- 1. 2
- 2. 4
- 3. 3
- 4. 7
- 5. 4
- 6. 1
- 7. 2
- 8. 2
- 9. 3
- 10. 3
- 11. 4
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number