πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Start at 17 and count back 3. Where do you land? (17 − 3)
Answer: ______________
2Start at 9 and count back 3. Where do you land? (9 − 3)
Answer: ______________
39 − 5 = ?
Answer: ______________
417 − 1 = ?
Answer: ______________
514 − 5 = ?
Answer: ______________
6Start at 11 and count back 3. Where do you land? (11 − 3)
Answer: ______________
712 − 4 = ?
Answer: ______________
812 − 5 = ?
Answer: ______________
912 − 7 = ?
Answer: ______________
1018 − 7 = ?
Answer: ______________
119 − 1 = ?
Answer: ______________
12Start at 12 and count back 2. Where do you land? (12 − 2)
Answer: ______________
Answer key: Subtract within 20
- 1. 14
- 2. 6
- 3. 4
- 4. 16
- 5. 9
- 6. 8
- 7. 8
- 8. 7
- 9. 5
- 10. 11
- 11. 8
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20