πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
11 + ? = 4
Answer: ______________
28 − ? = 3
Answer: ______________
35 − ? = 1
Answer: ______________
48 − ? = 7
Answer: ______________
59 + ? = 10
Answer: ______________
66 − 3 = ? Think addition: 3 + ? = 6
Answer: ______________
7? + 4 = 8
Answer: ______________
8? + 3 = 4
Answer: ______________
9? + 1 = 3
Answer: ______________
103 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
11? + 4 = 6
Answer: ______________
123 − ? = 1
Answer: ______________
Answer key: Missing numbers
- 1. 3
- 2. 5
- 3. 4
- 4. 1
- 5. 1
- 6. 3
- 7. 4
- 8. 1
- 9. 2
- 10. 2
- 11. 2
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number