πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
17 − 4 = ? Think addition: 4 + ? = 7
Answer: ______________
28 − ? = 5
Answer: ______________
34 + ? = 7
Answer: ______________
4? − 2 = 2
Answer: ______________
5? + 2 = 6
Answer: ______________
6? + 4 = 5
Answer: ______________
71 + ? = 4
Answer: ______________
8? − 2 = 3
Answer: ______________
9? − 8 = 1
Answer: ______________
109 − ? = 8
Answer: ______________
115 − 3 = ? Think addition: 3 + ? = 5
Answer: ______________
127 − 3 = ? Think addition: 3 + ? = 7
Answer: ______________
Answer key: Missing numbers
- 1. 3
- 2. 3
- 3. 3
- 4. 4
- 5. 4
- 6. 1
- 7. 3
- 8. 5
- 9. 9
- 10. 1
- 11. 2
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number