πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
215 − 11 = ?
Answer: ______________
3Get to ten first: 14 − 7 = 14 − 4 − ?
Answer: ______________
411 − 1 = ?
Answer: ______________
5Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
613 − 5 = ?
Answer: ______________
719 − 15 = ?
Answer: ______________
818 − 7 = ?
Answer: ______________
911 − 3 = ?
Answer: ______________
1016 − 9 = ?
Answer: ______________
1117 − 9 = ?
Answer: ______________
1216 − 14 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 2
- 2. 4
- 3. 3
- 4. 10
- 5. 4
- 6. 8
- 7. 4
- 8. 11
- 9. 8
- 10. 7
- 11. 8
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20