πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
17 − 3 = ? Think addition: 3 + ? = 7
Answer: ______________
210 − ? = 1
Answer: ______________
39 − 6 = ? Think addition: 6 + ? = 9
Answer: ______________
47 − 4 = ? Think addition: 4 + ? = 7
Answer: ______________
5? − 5 = 5
Answer: ______________
6? − 1 = 2
Answer: ______________
72 + ? = 7
Answer: ______________
84 − 2 = ? Think addition: 2 + ? = 4
Answer: ______________
9? − 6 = 2
Answer: ______________
10? + 2 = 3
Answer: ______________
114 + ? = 8
Answer: ______________
1210 − ? = 5
Answer: ______________
Answer key: Missing numbers
- 1. 4
- 2. 9
- 3. 3
- 4. 3
- 5. 10
- 6. 3
- 7. 5
- 8. 2
- 9. 8
- 10. 1
- 11. 4
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number