πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? − 4 = 4
Answer: ______________
210 − 3 = ? Think addition: 3 + ? = 10
Answer: ______________
3? − 2 = 2
Answer: ______________
4? + 4 = 6
Answer: ______________
58 − 6 = ? Think addition: 6 + ? = 8
Answer: ______________
69 − 2 = ? Think addition: 2 + ? = 9
Answer: ______________
71 + ? = 6
Answer: ______________
8? + 4 = 5
Answer: ______________
94 − 1 = ? Think addition: 1 + ? = 4
Answer: ______________
107 + ? = 10
Answer: ______________
116 − 4 = ? Think addition: 4 + ? = 6
Answer: ______________
124 − ? = 3
Answer: ______________
Answer key: Missing numbers
- 1. 8
- 2. 7
- 3. 4
- 4. 2
- 5. 2
- 6. 7
- 7. 5
- 8. 1
- 9. 3
- 10. 3
- 11. 2
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number