πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? + 3 = 4
Answer: ______________
24 − 1 = ? Think addition: 1 + ? = 4
Answer: ______________
37 − 3 = ? Think addition: 3 + ? = 7
Answer: ______________
47 + ? = 10
Answer: ______________
55 − 4 = ? Think addition: 4 + ? = 5
Answer: ______________
67 − ? = 3
Answer: ______________
76 − 2 = ? Think addition: 2 + ? = 6
Answer: ______________
8? + 1 = 10
Answer: ______________
9? − 2 = 8
Answer: ______________
101 + ? = 3
Answer: ______________
116 − ? = 5
Answer: ______________
12? + 5 = 6
Answer: ______________
Answer key: Missing numbers
- 1. 1
- 2. 3
- 3. 4
- 4. 3
- 5. 1
- 6. 4
- 7. 4
- 8. 9
- 9. 10
- 10. 2
- 11. 1
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number