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 − 3 = 11 − 1 − ?
Answer: ______________
217 − 7 = ?
Answer: ______________
311 − 1 = ?
Answer: ______________
419 − 18 = ?
Answer: ______________
5Get to ten first: 12 − 4 = 12 − 2 − ?
Answer: ______________
613 − 3 = ?
Answer: ______________
77 + 8 = ?
Answer: ______________
85 + 10 = ?
Answer: ______________
98 + 8 = ?
Answer: ______________
1018 − 14 = ?
Answer: ______________
11Make a ten: 6 + 7 = 6 + 4 + ?
Answer: ______________
1216 − 14 = ?
Answer: ______________
Answer key: Facts to 20
- 1. 2
- 2. 10
- 3. 10
- 4. 1
- 5. 2
- 6. 10
- 7. 15
- 8. 15
- 9. 16
- 10. 4
- 11. 3
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/2nd-grade/add-facts-20