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: 13 − 4 = 13 − 3 − ?
Answer: ______________
2Get to ten first: 11 − 6 = 11 − 1 − ?
Answer: ______________
313 − 3 = ?
Answer: ______________
46 + 8 = ?
Answer: ______________
512 − 8 = ?
Answer: ______________
616 − 15 = ?
Answer: ______________
717 − 17 = ?
Answer: ______________
814 − 10 = ?
Answer: ______________
915 − 12 = ?
Answer: ______________
10Make a ten: 6 + 7 = 6 + 4 + ?
Answer: ______________
115 + 3 = ?
Answer: ______________
1210 + 6 = ?
Answer: ______________
Answer key: Facts to 20
- 1. 1
- 2. 5
- 3. 10
- 4. 14
- 5. 4
- 6. 1
- 7. 0
- 8. 4
- 9. 3
- 10. 3
- 11. 8
- 12. 16
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/2nd-grade/add-facts-20