πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
13 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
2? + 1 = 8
Answer: ______________
37 + ? = 10
Answer: ______________
4? − 3 = 2
Answer: ______________
5? − 5 = 4
Answer: ______________
65 − 1 = ? Think addition: 1 + ? = 5
Answer: ______________
73 + ? = 5
Answer: ______________
8? + 5 = 6
Answer: ______________
96 + ? = 7
Answer: ______________
103 + ? = 4
Answer: ______________
11? − 5 = 3
Answer: ______________
12? − 1 = 2
Answer: ______________
Answer key: Missing numbers
- 1. 2
- 2. 7
- 3. 3
- 4. 5
- 5. 9
- 6. 4
- 7. 2
- 8. 1
- 9. 1
- 10. 1
- 11. 8
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number