πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
19 − ? = 2
Answer: ______________
2? + 5 = 7
Answer: ______________
33 − ? = 1
Answer: ______________
4? + 1 = 4
Answer: ______________
5? − 1 = 2
Answer: ______________
64 − 1 = ? Think addition: 1 + ? = 4
Answer: ______________
7? + 2 = 9
Answer: ______________
89 − 7 = ? Think addition: 7 + ? = 9
Answer: ______________
98 − 6 = ? Think addition: 6 + ? = 8
Answer: ______________
10? − 3 = 7
Answer: ______________
1110 − ? = 7
Answer: ______________
12? − 5 = 4
Answer: ______________
Answer key: Missing numbers
- 1. 7
- 2. 2
- 3. 2
- 4. 3
- 5. 3
- 6. 3
- 7. 7
- 8. 2
- 9. 2
- 10. 10
- 11. 3
- 12. 9
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number