πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Get to ten first: 12 − 9 = 12 − 2 − ?
Answer: ______________
218 − 12 = ?
Answer: ______________
317 − 13 = ?
Answer: ______________
417 − 1 = ?
Answer: ______________
517 − 2 = ?
Answer: ______________
619 − 5 = ?
Answer: ______________
7Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
8Get to ten first: 11 − 9 = 11 − 1 − ?
Answer: ______________
911 − 8 = ?
Answer: ______________
1011 − 11 = ?
Answer: ______________
1113 − 3 = ?
Answer: ______________
1217 − 7 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 7
- 2. 6
- 3. 4
- 4. 16
- 5. 15
- 6. 14
- 7. 4
- 8. 8
- 9. 3
- 10. 0
- 11. 10
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20