πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? + 6 = 9
Answer: ______________
26 − ? = 1
Answer: ______________
310 − ? = 9
Answer: ______________
4? − 1 = 2
Answer: ______________
55 − 3 = ? Think addition: 3 + ? = 5
Answer: ______________
61 + ? = 4
Answer: ______________
7? − 2 = 2
Answer: ______________
89 − 3 = ? Think addition: 3 + ? = 9
Answer: ______________
93 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
104 − 3 = ? Think addition: 3 + ? = 4
Answer: ______________
113 + ? = 4
Answer: ______________
1210 − 2 = ? Think addition: 2 + ? = 10
Answer: ______________
Answer key: Missing numbers
- 1. 3
- 2. 5
- 3. 1
- 4. 3
- 5. 2
- 6. 3
- 7. 4
- 8. 6
- 9. 2
- 10. 1
- 11. 1
- 12. 8
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number