πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
11 + ? = 4
Answer: ______________
2? + 5 = 6
Answer: ______________
39 − 3 = ? Think addition: 3 + ? = 9
Answer: ______________
410 − ? = 7
Answer: ______________
59 − 4 = ? Think addition: 4 + ? = 9
Answer: ______________
65 − 3 = ? Think addition: 3 + ? = 5
Answer: ______________
73 − 1 = ? Think addition: 1 + ? = 3
Answer: ______________
8? + 6 = 7
Answer: ______________
93 − ? = 2
Answer: ______________
10? + 4 = 7
Answer: ______________
11? + 5 = 8
Answer: ______________
129 − 6 = ? Think addition: 6 + ? = 9
Answer: ______________
Answer key: Missing numbers
- 1. 3
- 2. 1
- 3. 6
- 4. 3
- 5. 5
- 6. 2
- 7. 2
- 8. 1
- 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