πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
119 − 1 = ?
Answer: ______________
2Get to ten first: 14 − 6 = 14 − 4 − ?
Answer: ______________
312 − 4 = ?
Answer: ______________
413 − 9 = ?
Answer: ______________
512 − 9 = ?
Answer: ______________
6Get to ten first: 16 − 8 = 16 − 6 − ?
Answer: ______________
7Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
813 − 4 = ?
Answer: ______________
918 − 13 = ?
Answer: ______________
10Get to ten first: 11 − 8 = 11 − 1 − ?
Answer: ______________
1116 − 16 = ?
Answer: ______________
1215 − 13 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 18
- 2. 2
- 3. 8
- 4. 4
- 5. 3
- 6. 2
- 7. 1
- 8. 9
- 9. 5
- 10. 7
- 11. 0
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20