πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? − 1 = 2
Answer: ______________
23 − ? = 1
Answer: ______________
3? + 1 = 3
Answer: ______________
4? − 1 = 7
Answer: ______________
5? − 3 = 1
Answer: ______________
64 − ? = 1
Answer: ______________
73 − ? = 2
Answer: ______________
84 − 3 = ? Think addition: 3 + ? = 4
Answer: ______________
9? + 2 = 4
Answer: ______________
106 − ? = 3
Answer: ______________
11? + 7 = 9
Answer: ______________
126 − 3 = ? Think addition: 3 + ? = 6
Answer: ______________
Answer key: Missing numbers
- 1. 3
- 2. 2
- 3. 2
- 4. 8
- 5. 4
- 6. 3
- 7. 1
- 8. 1
- 9. 2
- 10. 3
- 11. 2
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number