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 − 6 = 12 − 2 − ?
Answer: ______________
218 − 14 = ?
Answer: ______________
312 − 4 = ?
Answer: ______________
4Get to ten first: 16 − 9 = 16 − 6 − ?
Answer: ______________
514 − 13 = ?
Answer: ______________
616 − 2 = ?
Answer: ______________
716 − 3 = ?
Answer: ______________
8Get to ten first: 16 − 7 = 16 − 6 − ?
Answer: ______________
918 − 16 = ?
Answer: ______________
1015 − 6 = ?
Answer: ______________
1115 − 15 = ?
Answer: ______________
1212 − 1 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 4
- 2. 4
- 3. 8
- 4. 3
- 5. 1
- 6. 14
- 7. 13
- 8. 1
- 9. 2
- 10. 9
- 11. 0
- 12. 11
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20