πagarwalmath · 1st grade · Common Core 1.OA.C.6
➕ Add within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
16 + 9 = ?
Answer: ______________
2Make a ten: 6 + 7 = 6 + 4 + ?
Answer: ______________
38 + 10 = ?
Answer: ______________
410 + 3 = ?
Answer: ______________
5Near doubles: 5 + 5 = 10. So 5 + 6 = ?
Answer: ______________
65 + 3 = ?
Answer: ______________
710 + 6 = ?
Answer: ______________
87 + 8 = ?
Answer: ______________
9Make a ten: 8 + 3 = 8 + 2 + ?
Answer: ______________
105 + 5 = ?
Answer: ______________
116 + 4 = ?
Answer: ______________
12Near doubles: 6 + 6 = 12. So 6 + 5 = ?
Answer: ______________
Answer key: Add within 20
- 1. 15
- 2. 3
- 3. 18
- 4. 13
- 5. 11
- 6. 8
- 7. 16
- 8. 15
- 9. 1
- 10. 10
- 11. 10
- 12. 11
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-within-20