πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
115 − 14 = ?
Answer: ______________
217 − 6 = ?
Answer: ______________
319 − 15 = ?
Answer: ______________
414 − 5 = ?
Answer: ______________
515 − 12 = ?
Answer: ______________
612 − 9 = ?
Answer: ______________
720 − 4 = ?
Answer: ______________
8Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
9Get to ten first: 14 − 9 = 14 − 4 − ?
Answer: ______________
10Get to ten first: 16 − 8 = 16 − 6 − ?
Answer: ______________
1116 − 13 = ?
Answer: ______________
1212 − 1 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 1
- 2. 11
- 3. 4
- 4. 9
- 5. 3
- 6. 3
- 7. 16
- 8. 1
- 9. 5
- 10. 2
- 11. 3
- 12. 11
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20