πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Get to ten first: 11 − 7 = 11 − 1 − ?
Answer: ______________
212 − 3 = ?
Answer: ______________
312 − 1 = ?
Answer: ______________
419 − 12 = ?
Answer: ______________
519 − 13 = ?
Answer: ______________
620 − 15 = ?
Answer: ______________
720 − 4 = ?
Answer: ______________
815 − 11 = ?
Answer: ______________
9Get to ten first: 12 − 7 = 12 − 2 − ?
Answer: ______________
10Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
1112 − 7 = ?
Answer: ______________
1216 − 1 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 6
- 2. 9
- 3. 11
- 4. 7
- 5. 6
- 6. 5
- 7. 16
- 8. 4
- 9. 5
- 10. 1
- 11. 5
- 12. 15
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20