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: 12 − 7 = 12 − 2 − ?
Answer: ______________
2Get to ten first: 13 − 4 = 13 − 3 − ?
Answer: ______________
3Get to ten first: 15 − 8 = 15 − 5 − ?
Answer: ______________
411 − 3 = ?
Answer: ______________
5Near doubles: 3 + 3 = 6. So 3 + 4 = ?
Answer: ______________
613 − 6 = ?
Answer: ______________
7Make a ten: 8 + 9 = 8 + 2 + ?
Answer: ______________
817 − 4 = ?
Answer: ______________
9Get to ten first: 11 − 3 = 11 − 1 − ?
Answer: ______________
1018 − 8 = ?
Answer: ______________
1112 − 7 = ?
Answer: ______________
12Make a ten: 6 + 9 = 6 + 4 + ?
Answer: ______________
Answer key: Facts to 20
- 1. 5
- 2. 1
- 3. 3
- 4. 8
- 5. 7
- 6. 7
- 7. 7
- 8. 13
- 9. 2
- 10. 10
- 11. 5
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/2nd-grade/add-facts-20