πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
13 − 2 = ? Think addition: 2 + ? = 3
Answer: ______________
2? + 1 = 7
Answer: ______________
36 − ? = 5
Answer: ______________
44 + ? = 9
Answer: ______________
5? + 2 = 5
Answer: ______________
6? + 3 = 6
Answer: ______________
76 − 3 = ? Think addition: 3 + ? = 6
Answer: ______________
82 + ? = 3
Answer: ______________
9? + 2 = 10
Answer: ______________
105 − 1 = ? Think addition: 1 + ? = 5
Answer: ______________
118 + ? = 10
Answer: ______________
12? − 2 = 1
Answer: ______________
Answer key: Missing numbers
- 1. 1
- 2. 6
- 3. 1
- 4. 5
- 5. 3
- 6. 3
- 7. 3
- 8. 1
- 9. 8
- 10. 4
- 11. 2
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number