πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
18 − 2 = ? Think addition: 2 + ? = 8
Answer: ______________
23 − ? = 1
Answer: ______________
34 − ? = 2
Answer: ______________
48 − ? = 3
Answer: ______________
51 + ? = 9
Answer: ______________
62 + ? = 5
Answer: ______________
75 − 4 = ? Think addition: 4 + ? = 5
Answer: ______________
85 + ? = 10
Answer: ______________
9? + 3 = 8
Answer: ______________
10? + 2 = 4
Answer: ______________
116 − 1 = ? Think addition: 1 + ? = 6
Answer: ______________
12? − 4 = 5
Answer: ______________
Answer key: Missing numbers
- 1. 6
- 2. 2
- 3. 2
- 4. 5
- 5. 8
- 6. 3
- 7. 1
- 8. 5
- 9. 5
- 10. 2
- 11. 5
- 12. 9
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number