πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
114 − 2 = ?
Answer: ______________
28 − 5 = ?
Answer: ______________
3Start at 9 and count back 3. Where do you land? (9 − 3)
Answer: ______________
45 − 3 = ?
Answer: ______________
5Start at 9 and count back 2. Where do you land? (9 − 2)
Answer: ______________
6Start at 10 and count back 3. Where do you land? (10 − 3)
Answer: ______________
7Start at 12 and count back 2. Where do you land? (12 − 2)
Answer: ______________
87 − 6 = ?
Answer: ______________
919 − 6 = ?
Answer: ______________
10Start at 16 and count back 3. Where do you land? (16 − 3)
Answer: ______________
119 − 2 = ?
Answer: ______________
1220 − 9 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 12
- 2. 3
- 3. 6
- 4. 2
- 5. 7
- 6. 7
- 7. 10
- 8. 1
- 9. 13
- 10. 13
- 11. 7
- 12. 11
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20