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: 12 − 3 = 12 − 2 − ?
Answer: ______________
213 − 12 = ?
Answer: ______________
317 − 17 = ?
Answer: ______________
417 − 4 = ?
Answer: ______________
519 − 1 = ?
Answer: ______________
618 − 15 = ?
Answer: ______________
715 − 15 = ?
Answer: ______________
814 − 8 = ?
Answer: ______________
920 − 6 = ?
Answer: ______________
1011 − 2 = ?
Answer: ______________
11Get to ten first: 15 − 8 = 15 − 5 − ?
Answer: ______________
12Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 1
- 2. 1
- 3. 0
- 4. 13
- 5. 18
- 6. 3
- 7. 0
- 8. 6
- 9. 14
- 10. 9
- 11. 3
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20