πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Start at 11 and count back 3. Where do you land? (11 − 3)
Answer: ______________
219 − 7 = ?
Answer: ______________
3Start at 9 and count back 2. Where do you land? (9 − 2)
Answer: ______________
416 − 4 = ?
Answer: ______________
515 − 4 = ?
Answer: ______________
618 − 3 = ?
Answer: ______________
75 − 2 = ?
Answer: ______________
815 − 9 = ?
Answer: ______________
914 − 3 = ?
Answer: ______________
108 − 1 = ?
Answer: ______________
118 − 3 = ?
Answer: ______________
12Start at 8 and count back 3. Where do you land? (8 − 3)
Answer: ______________
Answer key: Subtract within 20
- 1. 8
- 2. 12
- 3. 7
- 4. 12
- 5. 11
- 6. 15
- 7. 3
- 8. 6
- 9. 11
- 10. 7
- 11. 5
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20