πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
15 − 4 = ? Think addition: 4 + ? = 5
Answer: ______________
29 − ? = 8
Answer: ______________
33 − 2 = ? Think addition: 2 + ? = 3
Answer: ______________
46 − 4 = ? Think addition: 4 + ? = 6
Answer: ______________
53 + ? = 5
Answer: ______________
67 − 4 = ? Think addition: 4 + ? = 7
Answer: ______________
7? − 5 = 1
Answer: ______________
82 + ? = 3
Answer: ______________
91 + ? = 4
Answer: ______________
10? − 1 = 2
Answer: ______________
119 + ? = 10
Answer: ______________
121 + ? = 7
Answer: ______________
Answer key: Missing numbers
- 1. 1
- 2. 1
- 3. 1
- 4. 2
- 5. 2
- 6. 3
- 7. 6
- 8. 1
- 9. 3
- 10. 3
- 11. 1
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number