πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
16 + ? = 10
Answer: ______________
2? − 5 = 3
Answer: ______________
33 − 2 = ? Think addition: 2 + ? = 3
Answer: ______________
43 − ? = 2
Answer: ______________
53 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
66 − ? = 4
Answer: ______________
71 + ? = 6
Answer: ______________
8? + 4 = 10
Answer: ______________
92 + ? = 6
Answer: ______________
105 − 2 = ? Think addition: 2 + ? = 5
Answer: ______________
1110 − ? = 2
Answer: ______________
124 − ? = 2
Answer: ______________
Answer key: Missing numbers
- 1. 4
- 2. 8
- 3. 1
- 4. 1
- 5. 2
- 6. 2
- 7. 5
- 8. 6
- 9. 4
- 10. 3
- 11. 8
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number