πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
120 − 2 = ?
Answer: ______________
2Get to ten first: 16 − 7 = 16 − 6 − ?
Answer: ______________
312 − 11 = ?
Answer: ______________
4Get to ten first: 14 − 5 = 14 − 4 − ?
Answer: ______________
514 − 11 = ?
Answer: ______________
612 − 6 = ?
Answer: ______________
7Get to ten first: 11 − 4 = 11 − 1 − ?
Answer: ______________
814 − 8 = ?
Answer: ______________
920 − 8 = ?
Answer: ______________
1011 − 2 = ?
Answer: ______________
1118 − 6 = ?
Answer: ______________
1213 − 1 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 18
- 2. 1
- 3. 1
- 4. 1
- 5. 3
- 6. 6
- 7. 3
- 8. 6
- 9. 12
- 10. 9
- 11. 12
- 12. 12
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20