πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? − 2 = 1
Answer: ______________
2? + 1 = 8
Answer: ______________
37 − 3 = ? Think addition: 3 + ? = 7
Answer: ______________
4? − 4 = 1
Answer: ______________
57 − 2 = ? Think addition: 2 + ? = 7
Answer: ______________
6? + 2 = 3
Answer: ______________
72 + ? = 6
Answer: ______________
810 − ? = 5
Answer: ______________
98 − 1 = ? Think addition: 1 + ? = 8
Answer: ______________
103 + ? = 4
Answer: ______________
11? − 4 = 6
Answer: ______________
124 − 1 = ? Think addition: 1 + ? = 4
Answer: ______________
Answer key: Missing numbers
- 1. 3
- 2. 7
- 3. 4
- 4. 5
- 5. 5
- 6. 1
- 7. 4
- 8. 5
- 9. 7
- 10. 1
- 11. 10
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number