πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? + 3 = 4
Answer: ______________
28 − 2 = ? Think addition: 2 + ? = 8
Answer: ______________
3? − 3 = 3
Answer: ______________
410 − 6 = ? Think addition: 6 + ? = 10
Answer: ______________
5? + 2 = 3
Answer: ______________
67 − 1 = ? Think addition: 1 + ? = 7
Answer: ______________
76 − 2 = ? Think addition: 2 + ? = 6
Answer: ______________
8? + 2 = 8
Answer: ______________
9? − 1 = 4
Answer: ______________
108 − ? = 2
Answer: ______________
119 − ? = 7
Answer: ______________
1210 − 1 = ? Think addition: 1 + ? = 10
Answer: ______________
Answer key: Missing numbers
- 1. 1
- 2. 6
- 3. 6
- 4. 4
- 5. 1
- 6. 6
- 7. 4
- 8. 6
- 9. 5
- 10. 6
- 11. 2
- 12. 9
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number