πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
110 − 4 = ? Think addition: 4 + ? = 10
Answer: ______________
28 + ? = 9
Answer: ______________
35 − 2 = ? Think addition: 2 + ? = 5
Answer: ______________
42 + ? = 4
Answer: ______________
54 − 1 = ? Think addition: 1 + ? = 4
Answer: ______________
6? − 4 = 4
Answer: ______________
7? + 2 = 7
Answer: ______________
8? − 1 = 2
Answer: ______________
91 + ? = 4
Answer: ______________
104 − 2 = ? Think addition: 2 + ? = 4
Answer: ______________
118 − ? = 1
Answer: ______________
129 − ? = 1
Answer: ______________
Answer key: Missing numbers
- 1. 6
- 2. 1
- 3. 3
- 4. 2
- 5. 3
- 6. 8
- 7. 5
- 8. 3
- 9. 3
- 10. 2
- 11. 7
- 12. 8
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number