πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
15 + ? = 7
Answer: ______________
22 + ? = 7
Answer: ______________
34 + ? = 9
Answer: ______________
4? − 1 = 9
Answer: ______________
510 − 4 = ? Think addition: 4 + ? = 10
Answer: ______________
68 − 3 = ? Think addition: 3 + ? = 8
Answer: ______________
71 + ? = 3
Answer: ______________
86 − ? = 3
Answer: ______________
99 − ? = 1
Answer: ______________
10? − 3 = 2
Answer: ______________
114 + ? = 5
Answer: ______________
12? − 3 = 1
Answer: ______________
Answer key: Missing numbers
- 1. 2
- 2. 5
- 3. 5
- 4. 10
- 5. 6
- 6. 5
- 7. 2
- 8. 3
- 9. 8
- 10. 5
- 11. 1
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number