πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
113 − 1 = ?
Answer: ______________
211 − 9 = ?
Answer: ______________
3Start at 16 and count back 2. Where do you land? (16 − 2)
Answer: ______________
4Start at 18 and count back 2. Where do you land? (18 − 2)
Answer: ______________
517 − 7 = ?
Answer: ______________
613 − 4 = ?
Answer: ______________
7Start at 16 and count back 3. Where do you land? (16 − 3)
Answer: ______________
819 − 4 = ?
Answer: ______________
914 − 7 = ?
Answer: ______________
10Start at 10 and count back 2. Where do you land? (10 − 2)
Answer: ______________
118 − 1 = ?
Answer: ______________
1214 − 2 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 12
- 2. 2
- 3. 14
- 4. 16
- 5. 10
- 6. 9
- 7. 13
- 8. 15
- 9. 7
- 10. 8
- 11. 7
- 12. 12
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20