πagarwalmath · 1st grade · Common Core 1.OA.D.8
❓ Missing numbers
Find the unknown in any position (8 + ? = 11)
Name: ______________________Date: ____________
1? − 2 = 2
Answer: ______________
23 − 2 = ? Think addition: 2 + ? = 3
Answer: ______________
3? + 5 = 8
Answer: ______________
4? + 3 = 5
Answer: ______________
5? + 1 = 8
Answer: ______________
6? + 1 = 7
Answer: ______________
76 − ? = 4
Answer: ______________
810 − 4 = ? Think addition: 4 + ? = 10
Answer: ______________
95 − ? = 3
Answer: ______________
10? + 2 = 9
Answer: ______________
111 + ? = 6
Answer: ______________
128 − 5 = ? Think addition: 5 + ? = 8
Answer: ______________
Answer key: Missing numbers
- 1. 4
- 2. 1
- 3. 3
- 4. 2
- 5. 7
- 6. 6
- 7. 2
- 8. 6
- 9. 2
- 10. 7
- 11. 5
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-missing-number