πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
117 − 11 = ?
Answer: ______________
214 − 8 = ?
Answer: ______________
3Get to ten first: 11 − 6 = 11 − 1 − ?
Answer: ______________
411 − 9 = ?
Answer: ______________
5Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
6Get to ten first: 15 − 6 = 15 − 5 − ?
Answer: ______________
712 − 10 = ?
Answer: ______________
818 − 12 = ?
Answer: ______________
9Get to ten first: 13 − 4 = 13 − 3 − ?
Answer: ______________
1016 − 1 = ?
Answer: ______________
1119 − 2 = ?
Answer: ______________
1214 − 5 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 6
- 2. 6
- 3. 5
- 4. 2
- 5. 4
- 6. 1
- 7. 2
- 8. 6
- 9. 1
- 10. 15
- 11. 17
- 12. 9
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20