πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
112 − 7 = ?
Answer: ______________
220 − 12 = ?
Answer: ______________
313 − 1 = ?
Answer: ______________
4Get to ten first: 15 − 8 = 15 − 5 − ?
Answer: ______________
516 − 13 = ?
Answer: ______________
617 − 10 = ?
Answer: ______________
7Get to ten first: 11 − 9 = 11 − 1 − ?
Answer: ______________
815 − 2 = ?
Answer: ______________
918 − 8 = ?
Answer: ______________
10Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
1111 − 8 = ?
Answer: ______________
1216 − 3 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 5
- 2. 8
- 3. 12
- 4. 3
- 5. 3
- 6. 7
- 7. 8
- 8. 13
- 9. 10
- 10. 2
- 11. 3
- 12. 13
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20