πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
112 − 11 = ?
Answer: ______________
218 − 15 = ?
Answer: ______________
3Get to ten first: 12 − 8 = 12 − 2 − ?
Answer: ______________
413 − 7 = ?
Answer: ______________
5Get to ten first: 11 − 2 = 11 − 1 − ?
Answer: ______________
6Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
715 − 14 = ?
Answer: ______________
815 − 2 = ?
Answer: ______________
916 − 2 = ?
Answer: ______________
10Get to ten first: 16 − 8 = 16 − 6 − ?
Answer: ______________
1117 − 12 = ?
Answer: ______________
1214 − 12 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 1
- 2. 3
- 3. 6
- 4. 6
- 5. 1
- 6. 2
- 7. 1
- 8. 13
- 9. 14
- 10. 2
- 11. 5
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20