πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
15 − 2 = ?
Answer: ______________
217 − 7 = ?
Answer: ______________
3Start at 12 and count back 3. Where do you land? (12 − 3)
Answer: ______________
417 − 6 = ?
Answer: ______________
5Start at 17 and count back 2. Where do you land? (17 − 2)
Answer: ______________
6Start at 16 and count back 3. Where do you land? (16 − 3)
Answer: ______________
711 − 8 = ?
Answer: ______________
8Start at 14 and count back 2. Where do you land? (14 − 2)
Answer: ______________
99 − 6 = ?
Answer: ______________
105 − 5 = ?
Answer: ______________
11Start at 16 and count back 2. Where do you land? (16 − 2)
Answer: ______________
1217 − 5 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 3
- 2. 10
- 3. 9
- 4. 11
- 5. 15
- 6. 13
- 7. 3
- 8. 12
- 9. 3
- 10. 0
- 11. 14
- 12. 12
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20