πagarwalmath · 2nd grade · Common Core 2.OA.B.2
⚡ Facts to 20
Add and subtract within 20 from memory
Name: ______________________Date: ____________
1Near doubles: 8 + 8 = 16. So 8 + 9 = ?
Answer: ______________
2Make a ten: 9 + 3 = 9 + 1 + ?
Answer: ______________
3Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
4Make a ten: 6 + 9 = 6 + 4 + ?
Answer: ______________
59 + 6 = ?
Answer: ______________
612 − 5 = ?
Answer: ______________
7Get to ten first: 15 − 8 = 15 − 5 − ?
Answer: ______________
86 + 6 = ?
Answer: ______________
9Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
10Near doubles: 6 + 6 = 12. So 6 + 5 = ?
Answer: ______________
1118 − 2 = ?
Answer: ______________
128 + 6 = ?
Answer: ______________
Answer key: Facts to 20
- 1. 17
- 2. 2
- 3. 1
- 4. 5
- 5. 15
- 6. 7
- 7. 3
- 8. 12
- 9. 2
- 10. 11
- 11. 16
- 12. 14
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/2nd-grade/add-facts-20