πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? + 1 = 8
Answer: ______________
25 − 3 = ? Think addition: 3 + ? = 5
Answer: ______________
36 − 2 = ? Think addition: 2 + ? = 6
Answer: ______________
44 − ? = 3
Answer: ______________
57 − 2 = ? Think addition: 2 + ? = 7
Answer: ______________
6? + 3 = 8
Answer: ______________
7? + 9 = 10
Answer: ______________
86 − ? = 5
Answer: ______________
9? − 2 = 5
Answer: ______________
105 − ? = 4
Answer: ______________
114 + ? = 6
Answer: ______________
126 − ? = 4
Answer: ______________
Answer key: Missing numbers
- 1. 7
- 2. 2
- 3. 4
- 4. 1
- 5. 5
- 6. 5
- 7. 1
- 8. 1
- 9. 7
- 10. 1
- 11. 2
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number