πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
19 − ? = 8
Answer: ______________
24 − ? = 1
Answer: ______________
310 − 8 = ? Think addition: 8 + ? = 10
Answer: ______________
4? − 5 = 1
Answer: ______________
55 + ? = 7
Answer: ______________
6? − 2 = 7
Answer: ______________
710 − 3 = ? Think addition: 3 + ? = 10
Answer: ______________
83 − ? = 1
Answer: ______________
92 + ? = 4
Answer: ______________
10? − 2 = 2
Answer: ______________
1110 − ? = 5
Answer: ______________
12? − 7 = 2
Answer: ______________
Answer key: Missing numbers
- 1. 1
- 2. 3
- 3. 2
- 4. 6
- 5. 2
- 6. 9
- 7. 7
- 8. 2
- 9. 2
- 10. 4
- 11. 5
- 12. 9
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number