πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
14 + ? = 5
Answer: ______________
2? − 3 = 3
Answer: ______________
3? − 9 = 1
Answer: ______________
4? + 4 = 7
Answer: ______________
5? − 2 = 5
Answer: ______________
6? − 1 = 2
Answer: ______________
710 − ? = 7
Answer: ______________
84 + ? = 9
Answer: ______________
91 + ? = 3
Answer: ______________
105 − 3 = ? Think addition: 3 + ? = 5
Answer: ______________
118 − 5 = ? Think addition: 5 + ? = 8
Answer: ______________
1210 − ? = 3
Answer: ______________
Answer key: Missing numbers
- 1. 1
- 2. 6
- 3. 10
- 4. 3
- 5. 7
- 6. 3
- 7. 3
- 8. 5
- 9. 2
- 10. 2
- 11. 3
- 12. 7
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number