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? − 6 = 2
Answer: ______________
32 + ? = 3
Answer: ______________
43 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
53 − 2 = ? Think addition: 2 + ? = 3
Answer: ______________
61 + ? = 5
Answer: ______________
7? + 1 = 3
Answer: ______________
8? − 8 = 1
Answer: ______________
99 − ? = 2
Answer: ______________
101 + ? = 8
Answer: ______________
115 − ? = 4
Answer: ______________
129 − 7 = ? Think addition: 7 + ? = 9
Answer: ______________
Answer key: Missing numbers
- 1. 1
- 2. 8
- 3. 1
- 4. 2
- 5. 1
- 6. 4
- 7. 2
- 8. 9
- 9. 7
- 10. 7
- 11. 1
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number