πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
118 − 3 = ?
Answer: ______________
2Get to ten first: 13 − 4 = 13 − 3 − ?
Answer: ______________
317 − 4 = ?
Answer: ______________
4Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
520 − 18 = ?
Answer: ______________
614 − 1 = ?
Answer: ______________
718 − 1 = ?
Answer: ______________
8Get to ten first: 13 − 7 = 13 − 3 − ?
Answer: ______________
9Get to ten first: 14 − 9 = 14 − 4 − ?
Answer: ______________
1018 − 5 = ?
Answer: ______________
1115 − 12 = ?
Answer: ______________
12Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 15
- 2. 1
- 3. 13
- 4. 2
- 5. 2
- 6. 13
- 7. 17
- 8. 4
- 9. 5
- 10. 13
- 11. 3
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20