πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
11 + ? = 8
Answer: ______________
26 − 1 = ? Think addition: 1 + ? = 6
Answer: ______________
36 − ? = 5
Answer: ______________
43 − ? = 1
Answer: ______________
5? + 5 = 8
Answer: ______________
69 − 2 = ? Think addition: 2 + ? = 9
Answer: ______________
7? − 3 = 1
Answer: ______________
87 + ? = 10
Answer: ______________
910 − 8 = ? Think addition: 8 + ? = 10
Answer: ______________
107 − 4 = ? Think addition: 4 + ? = 7
Answer: ______________
118 + ? = 9
Answer: ______________
127 − ? = 3
Answer: ______________
Answer key: Missing numbers
- 1. 7
- 2. 5
- 3. 1
- 4. 2
- 5. 3
- 6. 7
- 7. 4
- 8. 3
- 9. 2
- 10. 3
- 11. 1
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number