πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
111 − 2 = ?
Answer: ______________
218 − 6 = ?
Answer: ______________
317 − 7 = ?
Answer: ______________
4Start at 8 and count back 3. Where do you land? (8 − 3)
Answer: ______________
520 − 5 = ?
Answer: ______________
66 − 2 = ?
Answer: ______________
7Start at 16 and count back 3. Where do you land? (16 − 3)
Answer: ______________
810 − 1 = ?
Answer: ______________
9Start at 17 and count back 3. Where do you land? (17 − 3)
Answer: ______________
10Start at 17 and count back 2. Where do you land? (17 − 2)
Answer: ______________
1114 − 4 = ?
Answer: ______________
1215 − 5 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 9
- 2. 12
- 3. 10
- 4. 5
- 5. 15
- 6. 4
- 7. 13
- 8. 9
- 9. 14
- 10. 15
- 11. 10
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20