πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
118 − 2 = ?
Answer: ______________
211 − 1 = ?
Answer: ______________
320 − 19 = ?
Answer: ______________
419 − 15 = ?
Answer: ______________
5Get to ten first: 15 − 7 = 15 − 5 − ?
Answer: ______________
6Get to ten first: 13 − 4 = 13 − 3 − ?
Answer: ______________
716 − 13 = ?
Answer: ______________
813 − 3 = ?
Answer: ______________
915 − 4 = ?
Answer: ______________
10Get to ten first: 11 − 8 = 11 − 1 − ?
Answer: ______________
1114 − 13 = ?
Answer: ______________
1220 − 13 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 16
- 2. 10
- 3. 1
- 4. 4
- 5. 2
- 6. 1
- 7. 3
- 8. 10
- 9. 11
- 10. 7
- 11. 1
- 12. 7
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20