πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
15 − 2 = ? Think addition: 2 + ? = 5
Answer: ______________
2? − 5 = 4
Answer: ______________
36 − 4 = ? Think addition: 4 + ? = 6
Answer: ______________
4? + 2 = 3
Answer: ______________
53 − ? = 1
Answer: ______________
65 − ? = 4
Answer: ______________
78 − 5 = ? Think addition: 5 + ? = 8
Answer: ______________
84 − ? = 1
Answer: ______________
95 − 3 = ? Think addition: 3 + ? = 5
Answer: ______________
102 + ? = 3
Answer: ______________
11? − 5 = 3
Answer: ______________
12? − 1 = 4
Answer: ______________
Answer key: Missing numbers
- 1. 3
- 2. 9
- 3. 2
- 4. 1
- 5. 2
- 6. 1
- 7. 3
- 8. 3
- 9. 2
- 10. 1
- 11. 8
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number