πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
11 + ? = 8
Answer: ______________
25 − 4 = ? Think addition: 4 + ? = 5
Answer: ______________
310 − 5 = ? Think addition: 5 + ? = 10
Answer: ______________
46 + ? = 7
Answer: ______________
510 − 8 = ? Think addition: 8 + ? = 10
Answer: ______________
6? + 2 = 10
Answer: ______________
75 + ? = 6
Answer: ______________
8? + 3 = 6
Answer: ______________
97 − 3 = ? Think addition: 3 + ? = 7
Answer: ______________
104 − 2 = ? Think addition: 2 + ? = 4
Answer: ______________
11? − 1 = 7
Answer: ______________
129 − ? = 8
Answer: ______________
Answer key: Missing numbers
- 1. 7
- 2. 1
- 3. 5
- 4. 1
- 5. 2
- 6. 8
- 7. 1
- 8. 3
- 9. 4
- 10. 2
- 11. 8
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number