πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? + 4 = 5
Answer: ______________
26 − 1 = ? Think addition: 1 + ? = 6
Answer: ______________
37 − 1 = ? Think addition: 1 + ? = 7
Answer: ______________
4? − 4 = 3
Answer: ______________
5? − 8 = 2
Answer: ______________
6? + 6 = 10
Answer: ______________
75 − 3 = ? Think addition: 3 + ? = 5
Answer: ______________
8? − 2 = 3
Answer: ______________
98 − 7 = ? Think addition: 7 + ? = 8
Answer: ______________
10? − 1 = 4
Answer: ______________
112 + ? = 7
Answer: ______________
12? − 1 = 3
Answer: ______________
Answer key: Missing numbers
- 1. 1
- 2. 5
- 3. 6
- 4. 7
- 5. 10
- 6. 4
- 7. 2
- 8. 5
- 9. 1
- 10. 5
- 11. 5
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number