πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
115 − 9 = ?
Answer: ______________
212 − 1 = ?
Answer: ______________
3Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
4Get to ten first: 15 − 8 = 15 − 5 − ?
Answer: ______________
520 − 19 = ?
Answer: ______________
619 − 1 = ?
Answer: ______________
716 − 5 = ?
Answer: ______________
813 − 1 = ?
Answer: ______________
913 − 10 = ?
Answer: ______________
1011 − 2 = ?
Answer: ______________
1113 − 7 = ?
Answer: ______________
1216 − 2 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 6
- 2. 11
- 3. 2
- 4. 3
- 5. 1
- 6. 18
- 7. 11
- 8. 12
- 9. 3
- 10. 9
- 11. 6
- 12. 14
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20