πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
117 − ? = 12
Answer: ______________
27 + ? = 16
Answer: ______________
31 + ? = 12
Answer: ______________
414 − 13 = ? Think addition: 13 + ? = 14
Answer: ______________
514 − 8 = ? Think addition: 8 + ? = 14
Answer: ______________
619 − ? = 10
Answer: ______________
710 + ? = 15
Answer: ______________
8? − 4 = 10
Answer: ______________
911 − ? = 5
Answer: ______________
1013 − ? = 5
Answer: ______________
1113 − 6 = ? Think addition: 6 + ? = 13
Answer: ______________
1220 − ? = 16
Answer: ______________
Answer key: Missing numbers
- 1. 5
- 2. 9
- 3. 11
- 4. 1
- 5. 6
- 6. 9
- 7. 5
- 8. 14
- 9. 6
- 10. 8
- 11. 7
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number