πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
16 + ? = 10
Answer: ______________
21 + ? = 5
Answer: ______________
31 + ? = 7
Answer: ______________
43 + ? = 6
Answer: ______________
53 + ? = 9
Answer: ______________
62 + ? = 3
Answer: ______________
73 + ? = 5
Answer: ______________
81 + ? = 4
Answer: ______________
94 + ? = 5
Answer: ______________
107 + ? = 10
Answer: ______________
112 + ? = 5
Answer: ______________
124 + ? = 7
Answer: ______________
Answer key: Missing numbers
- 1. 4
- 2. 4
- 3. 6
- 4. 3
- 5. 6
- 6. 1
- 7. 2
- 8. 3
- 9. 1
- 10. 3
- 11. 3
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number