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: 17 − 8 = 17 − 7 − ?
Answer: ______________
215 − 13 = ?
Answer: ______________
319 − 12 = ?
Answer: ______________
4Get to ten first: 11 − 2 = 11 − 1 − ?
Answer: ______________
518 − 6 = ?
Answer: ______________
616 − 2 = ?
Answer: ______________
7Get to ten first: 14 − 7 = 14 − 4 − ?
Answer: ______________
8Get to ten first: 13 − 9 = 13 − 3 − ?
Answer: ______________
915 − 9 = ?
Answer: ______________
1016 − 15 = ?
Answer: ______________
1111 − 6 = ?
Answer: ______________
1214 − 1 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 1
- 2. 2
- 3. 7
- 4. 1
- 5. 12
- 6. 14
- 7. 3
- 8. 6
- 9. 6
- 10. 1
- 11. 5
- 12. 13
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20