πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
13 − 2 = ? Think addition: 2 + ? = 3
Answer: ______________
2? − 2 = 2
Answer: ______________
31 + ? = 5
Answer: ______________
4? + 1 = 5
Answer: ______________
59 − ? = 7
Answer: ______________
62 + ? = 5
Answer: ______________
75 − ? = 4
Answer: ______________
83 + ? = 5
Answer: ______________
96 − 5 = ? Think addition: 5 + ? = 6
Answer: ______________
10? − 1 = 3
Answer: ______________
114 + ? = 5
Answer: ______________
123 + ? = 4
Answer: ______________
Answer key: Missing numbers
- 1. 1
- 2. 4
- 3. 4
- 4. 4
- 5. 2
- 6. 3
- 7. 1
- 8. 2
- 9. 1
- 10. 4
- 11. 1
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number