πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? − 8 = 2
Answer: ______________
2? − 2 = 8
Answer: ______________
36 − ? = 1
Answer: ______________
410 − 3 = ? Think addition: 3 + ? = 10
Answer: ______________
53 − 2 = ? Think addition: 2 + ? = 3
Answer: ______________
6? − 4 = 1
Answer: ______________
74 − 3 = ? Think addition: 3 + ? = 4
Answer: ______________
8? + 2 = 3
Answer: ______________
910 − 7 = ? Think addition: 7 + ? = 10
Answer: ______________
10? + 3 = 6
Answer: ______________
118 − 7 = ? Think addition: 7 + ? = 8
Answer: ______________
12? − 3 = 3
Answer: ______________
Answer key: Missing numbers
- 1. 10
- 2. 10
- 3. 5
- 4. 7
- 5. 1
- 6. 5
- 7. 1
- 8. 1
- 9. 3
- 10. 3
- 11. 1
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number