πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
116 − 8 = ?
Answer: ______________
212 − 5 = ?
Answer: ______________
3Get to ten first: 12 − 9 = 12 − 2 − ?
Answer: ______________
411 − 3 = ?
Answer: ______________
515 − 2 = ?
Answer: ______________
6Get to ten first: 16 − 9 = 16 − 6 − ?
Answer: ______________
718 − 3 = ?
Answer: ______________
819 − 7 = ?
Answer: ______________
9Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
1013 − 12 = ?
Answer: ______________
1119 − 9 = ?
Answer: ______________
1220 − 12 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 8
- 2. 7
- 3. 7
- 4. 8
- 5. 13
- 6. 3
- 7. 15
- 8. 12
- 9. 1
- 10. 1
- 11. 10
- 12. 8
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20