πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
116 − 12 = ? Think addition: 12 + ? = 16
Answer: ______________
212 − 8 = ? Think addition: 8 + ? = 12
Answer: ______________
319 − ? = 12
Answer: ______________
411 − 1 = ? Think addition: 1 + ? = 11
Answer: ______________
5? − 18 = 1
Answer: ______________
611 − 4 = ? Think addition: 4 + ? = 11
Answer: ______________
7? + 10 = 12
Answer: ______________
814 − ? = 7
Answer: ______________
913 + ? = 15
Answer: ______________
1013 − ? = 6
Answer: ______________
1112 − 6 = ? Think addition: 6 + ? = 12
Answer: ______________
1213 − ? = 5
Answer: ______________
Answer key: Missing numbers
- 1. 4
- 2. 4
- 3. 7
- 4. 10
- 5. 19
- 6. 7
- 7. 2
- 8. 7
- 9. 2
- 10. 7
- 11. 6
- 12. 8
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number