πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
18 − ? = 2
Answer: ______________
26 − ? = 3
Answer: ______________
310 − ? = 3
Answer: ______________
43 + ? = 4
Answer: ______________
5? − 6 = 2
Answer: ______________
6? + 4 = 10
Answer: ______________
74 + ? = 6
Answer: ______________
83 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
93 − ? = 1
Answer: ______________
101 + ? = 7
Answer: ______________
115 − 1 = ? Think addition: 1 + ? = 5
Answer: ______________
124 + ? = 8
Answer: ______________
Answer key: Missing numbers
- 1. 6
- 2. 3
- 3. 7
- 4. 1
- 5. 8
- 6. 6
- 7. 2
- 8. 2
- 9. 2
- 10. 6
- 11. 4
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number