πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
17 − 1 = ?
Answer: ______________
27 − 5 = ?
Answer: ______________
3Start at 17 and count back 2. Where do you land? (17 − 2)
Answer: ______________
413 − 6 = ?
Answer: ______________
520 − 4 = ?
Answer: ______________
610 − 7 = ?
Answer: ______________
7Start at 12 and count back 3. Where do you land? (12 − 3)
Answer: ______________
8Start at 14 and count back 3. Where do you land? (14 − 3)
Answer: ______________
96 − 3 = ?
Answer: ______________
1017 − 9 = ?
Answer: ______________
1114 − 3 = ?
Answer: ______________
127 − 4 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 6
- 2. 2
- 3. 15
- 4. 7
- 5. 16
- 6. 3
- 7. 9
- 8. 11
- 9. 3
- 10. 8
- 11. 11
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20