πagarwalmath · 2nd grade · Common Core 2.OA.B.2
⚡ Facts to 20
Add and subtract within 20 from memory
Name: ______________________Date: ____________
1Get to ten first: 11 − 8 = 11 − 1 − ?
Answer: ______________
210 + 8 = ?
Answer: ______________
3Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
49 + 6 = ?
Answer: ______________
5Near doubles: 8 + 8 = 16. So 8 + 7 = ?
Answer: ______________
615 − 1 = ?
Answer: ______________
75 + 6 = ?
Answer: ______________
89 + 3 = ?
Answer: ______________
918 − 13 = ?
Answer: ______________
106 + 9 = ?
Answer: ______________
1120 − 1 = ?
Answer: ______________
1220 − 3 = ?
Answer: ______________
Answer key: Facts to 20
- 1. 7
- 2. 18
- 3. 2
- 4. 15
- 5. 15
- 6. 14
- 7. 11
- 8. 12
- 9. 5
- 10. 15
- 11. 19
- 12. 17
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/2nd-grade/add-facts-20