πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
112 − 5 = ?
Answer: ______________
217 − 4 = ?
Answer: ______________
3Get to ten first: 12 − 6 = 12 − 2 − ?
Answer: ______________
4Get to ten first: 11 − 9 = 11 − 1 − ?
Answer: ______________
511 − 4 = ?
Answer: ______________
617 − 6 = ?
Answer: ______________
720 − 8 = ?
Answer: ______________
817 − 9 = ?
Answer: ______________
9Get to ten first: 11 − 3 = 11 − 1 − ?
Answer: ______________
10Get to ten first: 14 − 7 = 14 − 4 − ?
Answer: ______________
1114 − 9 = ?
Answer: ______________
1217 − 11 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 7
- 2. 13
- 3. 4
- 4. 8
- 5. 7
- 6. 11
- 7. 12
- 8. 8
- 9. 2
- 10. 3
- 11. 5
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20