πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
110 − 1 = ? Think addition: 1 + ? = 10
Answer: ______________
29 − 6 = ? Think addition: 6 + ? = 9
Answer: ______________
3? − 1 = 5
Answer: ______________
4? − 8 = 2
Answer: ______________
53 + ? = 10
Answer: ______________
6? + 2 = 3
Answer: ______________
7? + 3 = 4
Answer: ______________
86 + ? = 7
Answer: ______________
96 − 1 = ? Think addition: 1 + ? = 6
Answer: ______________
10? + 7 = 10
Answer: ______________
115 − ? = 4
Answer: ______________
123 − 2 = ? Think addition: 2 + ? = 3
Answer: ______________
Answer key: Missing numbers
- 1. 9
- 2. 3
- 3. 6
- 4. 10
- 5. 7
- 6. 1
- 7. 1
- 8. 1
- 9. 5
- 10. 3
- 11. 1
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number