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: 13 − 6 = 13 − 3 − ?
Answer: ______________
219 − 3 = ?
Answer: ______________
3Get to ten first: 14 − 6 = 14 − 4 − ?
Answer: ______________
414 − 13 = ?
Answer: ______________
517 − 14 = ?
Answer: ______________
613 − 2 = ?
Answer: ______________
716 − 15 = ?
Answer: ______________
8Get to ten first: 16 − 7 = 16 − 6 − ?
Answer: ______________
912 − 3 = ?
Answer: ______________
1019 − 9 = ?
Answer: ______________
1115 − 6 = ?
Answer: ______________
1218 − 17 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 3
- 2. 16
- 3. 2
- 4. 1
- 5. 3
- 6. 11
- 7. 1
- 8. 1
- 9. 9
- 10. 10
- 11. 9
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20