πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
111 − 1 = ?
Answer: ______________
212 − 12 = ?
Answer: ______________
317 − 3 = ?
Answer: ______________
4Get to ten first: 14 − 8 = 14 − 4 − ?
Answer: ______________
5Get to ten first: 13 − 9 = 13 − 3 − ?
Answer: ______________
6Get to ten first: 13 − 5 = 13 − 3 − ?
Answer: ______________
716 − 16 = ?
Answer: ______________
814 − 8 = ?
Answer: ______________
9Get to ten first: 13 − 6 = 13 − 3 − ?
Answer: ______________
1015 − 10 = ?
Answer: ______________
1116 − 7 = ?
Answer: ______________
1220 − 13 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 10
- 2. 0
- 3. 14
- 4. 4
- 5. 6
- 6. 2
- 7. 0
- 8. 6
- 9. 3
- 10. 5
- 11. 9
- 12. 7
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20