πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
15 − ? = 3
Answer: ______________
29 − 1 = ? Think addition: 1 + ? = 9
Answer: ______________
34 − 3 = ? Think addition: 3 + ? = 4
Answer: ______________
410 − 7 = ? Think addition: 7 + ? = 10
Answer: ______________
5? − 8 = 2
Answer: ______________
62 + ? = 7
Answer: ______________
7? + 5 = 10
Answer: ______________
8? + 7 = 9
Answer: ______________
98 − 6 = ? Think addition: 6 + ? = 8
Answer: ______________
108 − 5 = ? Think addition: 5 + ? = 8
Answer: ______________
11? − 1 = 6
Answer: ______________
129 − ? = 3
Answer: ______________
Answer key: Missing numbers
- 1. 2
- 2. 8
- 3. 1
- 4. 3
- 5. 10
- 6. 5
- 7. 5
- 8. 2
- 9. 2
- 10. 3
- 11. 7
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number