πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
115 − 5 = ?
Answer: ______________
220 − 3 = ?
Answer: ______________
313 − 3 = ?
Answer: ______________
415 − 3 = ?
Answer: ______________
5Start at 12 and count back 2. Where do you land? (12 − 2)
Answer: ______________
613 − 4 = ?
Answer: ______________
7Start at 13 and count back 2. Where do you land? (13 − 2)
Answer: ______________
820 − 9 = ?
Answer: ______________
9Start at 16 and count back 2. Where do you land? (16 − 2)
Answer: ______________
10Start at 17 and count back 3. Where do you land? (17 − 3)
Answer: ______________
1118 − 5 = ?
Answer: ______________
127 − 6 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 10
- 2. 17
- 3. 10
- 4. 12
- 5. 10
- 6. 9
- 7. 11
- 8. 11
- 9. 14
- 10. 14
- 11. 13
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20