πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
120 − 3 = ?
Answer: ______________
218 − 4 = ?
Answer: ______________
38 − 7 = ?
Answer: ______________
48 − 5 = ?
Answer: ______________
5Start at 13 and count back 3. Where do you land? (13 − 3)
Answer: ______________
618 − 8 = ?
Answer: ______________
718 − 2 = ?
Answer: ______________
811 − 5 = ?
Answer: ______________
99 − 5 = ?
Answer: ______________
106 − 2 = ?
Answer: ______________
1111 − 1 = ?
Answer: ______________
1216 − 6 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 17
- 2. 14
- 3. 1
- 4. 3
- 5. 10
- 6. 10
- 7. 16
- 8. 6
- 9. 4
- 10. 4
- 11. 10
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20