πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
118 − 1 = ?
Answer: ______________
212 − 1 = ?
Answer: ______________
3Start at 14 and count back 2. Where do you land? (14 − 2)
Answer: ______________
4Start at 10 and count back 2. Where do you land? (10 − 2)
Answer: ______________
516 − 3 = ?
Answer: ______________
612 − 8 = ?
Answer: ______________
713 − 8 = ?
Answer: ______________
819 − 3 = ?
Answer: ______________
9Start at 10 and count back 3. Where do you land? (10 − 3)
Answer: ______________
1012 − 2 = ?
Answer: ______________
1114 − 7 = ?
Answer: ______________
12Start at 8 and count back 2. Where do you land? (8 − 2)
Answer: ______________
Answer key: Subtract within 20
- 1. 17
- 2. 11
- 3. 12
- 4. 8
- 5. 13
- 6. 4
- 7. 5
- 8. 16
- 9. 7
- 10. 10
- 11. 7
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20