πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
111 − 1 = ?
Answer: ______________
29 − 2 = ?
Answer: ______________
3Start at 15 and count back 3. Where do you land? (15 − 3)
Answer: ______________
45 − 4 = ?
Answer: ______________
5Start at 12 and count back 2. Where do you land? (12 − 2)
Answer: ______________
6Start at 17 and count back 3. Where do you land? (17 − 3)
Answer: ______________
79 − 7 = ?
Answer: ______________
815 − 5 = ?
Answer: ______________
97 − 6 = ?
Answer: ______________
10Start at 16 and count back 3. Where do you land? (16 − 3)
Answer: ______________
1113 − 3 = ?
Answer: ______________
125 − 3 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 10
- 2. 7
- 3. 12
- 4. 1
- 5. 10
- 6. 14
- 7. 2
- 8. 10
- 9. 1
- 10. 13
- 11. 10
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20