πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
120 − 8 = ?
Answer: ______________
211 − 4 = ?
Answer: ______________
37 − 1 = ?
Answer: ______________
4Start at 16 and count back 3. Where do you land? (16 − 3)
Answer: ______________
5Start at 8 and count back 3. Where do you land? (8 − 3)
Answer: ______________
67 − 3 = ?
Answer: ______________
720 − 2 = ?
Answer: ______________
818 − 5 = ?
Answer: ______________
916 − 1 = ?
Answer: ______________
1019 − 9 = ?
Answer: ______________
11Start at 18 and count back 3. Where do you land? (18 − 3)
Answer: ______________
1217 − 4 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 12
- 2. 7
- 3. 6
- 4. 13
- 5. 5
- 6. 4
- 7. 18
- 8. 13
- 9. 15
- 10. 10
- 11. 15
- 12. 13
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20