πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
17 − 1 = ? Think addition: 1 + ? = 7
Answer: ______________
2? + 5 = 6
Answer: ______________
310 − ? = 2
Answer: ______________
4? − 4 = 1
Answer: ______________
55 + ? = 7
Answer: ______________
66 − 4 = ? Think addition: 4 + ? = 6
Answer: ______________
73 + ? = 7
Answer: ______________
83 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
9? + 6 = 8
Answer: ______________
10? − 2 = 1
Answer: ______________
11? − 3 = 7
Answer: ______________
12? + 4 = 5
Answer: ______________
Answer key: Missing numbers
- 1. 6
- 2. 1
- 3. 8
- 4. 5
- 5. 2
- 6. 2
- 7. 4
- 8. 2
- 9. 2
- 10. 3
- 11. 10
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number