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: 14 − 5 = 14 − 4 − ?
Answer: ______________
2Near doubles: 5 + 5 = 10. So 5 + 4 = ?
Answer: ______________
318 − 13 = ?
Answer: ______________
417 − 8 = ?
Answer: ______________
5Near doubles: 9 + 9 = 18. So 9 + 10 = ?
Answer: ______________
6Get to ten first: 14 − 7 = 14 − 4 − ?
Answer: ______________
712 − 12 = ?
Answer: ______________
85 + 10 = ?
Answer: ______________
96 + 8 = ?
Answer: ______________
1011 − 3 = ?
Answer: ______________
1119 − 4 = ?
Answer: ______________
1218 − 12 = ?
Answer: ______________
Answer key: Facts to 20
- 1. 1
- 2. 9
- 3. 5
- 4. 9
- 5. 19
- 6. 3
- 7. 0
- 8. 15
- 9. 14
- 10. 8
- 11. 15
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/2nd-grade/add-facts-20