πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
19 − 3 = ? Think addition: 3 + ? = 9
Answer: ______________
23 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
34 − 1 = ? Think addition: 1 + ? = 4
Answer: ______________
45 − ? = 3
Answer: ______________
55 − 4 = ? Think addition: 4 + ? = 5
Answer: ______________
6? + 2 = 3
Answer: ______________
76 − ? = 2
Answer: ______________
88 + ? = 9
Answer: ______________
97 + ? = 9
Answer: ______________
107 + ? = 10
Answer: ______________
11? − 3 = 3
Answer: ______________
124 − ? = 1
Answer: ______________
Answer key: Missing numbers
- 1. 6
- 2. 2
- 3. 3
- 4. 2
- 5. 1
- 6. 1
- 7. 4
- 8. 1
- 9. 2
- 10. 3
- 11. 6
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number