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: 12 − 4 = 12 − 2 − ?
Answer: ______________
215 − 8 = ?
Answer: ______________
3Get to ten first: 11 − 3 = 11 − 1 − ?
Answer: ______________
411 − 7 = ?
Answer: ______________
516 − 8 = ?
Answer: ______________
6Get to ten first: 12 − 9 = 12 − 2 − ?
Answer: ______________
719 − 9 = ?
Answer: ______________
8Get to ten first: 14 − 9 = 14 − 4 − ?
Answer: ______________
919 − 2 = ?
Answer: ______________
1011 − 10 = ?
Answer: ______________
1120 − 20 = ?
Answer: ______________
1214 − 2 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 2
- 2. 7
- 3. 2
- 4. 4
- 5. 8
- 6. 7
- 7. 10
- 8. 5
- 9. 17
- 10. 1
- 11. 0
- 12. 12
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20