πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? + 2 = 7
Answer: ______________
2? + 3 = 7
Answer: ______________
39 − 6 = ? Think addition: 6 + ? = 9
Answer: ______________
4? − 7 = 1
Answer: ______________
57 − 6 = ? Think addition: 6 + ? = 7
Answer: ______________
63 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
7? + 6 = 8
Answer: ______________
8? − 5 = 5
Answer: ______________
98 − 5 = ? Think addition: 5 + ? = 8
Answer: ______________
107 − ? = 3
Answer: ______________
113 + ? = 7
Answer: ______________
127 − ? = 2
Answer: ______________
Answer key: Missing numbers
- 1. 5
- 2. 4
- 3. 3
- 4. 8
- 5. 1
- 6. 2
- 7. 2
- 8. 10
- 9. 3
- 10. 4
- 11. 4
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number