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: 16 − 9 = 16 − 6 − ?
Answer: ______________
218 − 15 = ?
Answer: ______________
3Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
419 − 1 = ?
Answer: ______________
514 − 2 = ?
Answer: ______________
616 − 3 = ?
Answer: ______________
7Get to ten first: 12 − 5 = 12 − 2 − ?
Answer: ______________
813 − 4 = ?
Answer: ______________
920 − 18 = ?
Answer: ______________
1019 − 2 = ?
Answer: ______________
1112 − 5 = ?
Answer: ______________
1214 − 7 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 3
- 2. 3
- 3. 1
- 4. 18
- 5. 12
- 6. 13
- 7. 3
- 8. 9
- 9. 2
- 10. 17
- 11. 7
- 12. 7
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20