πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
117 − 12 = ?
Answer: ______________
220 − 15 = ?
Answer: ______________
3Get to ten first: 13 − 6 = 13 − 3 − ?
Answer: ______________
4Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
513 − 5 = ?
Answer: ______________
614 − 14 = ?
Answer: ______________
712 − 10 = ?
Answer: ______________
817 − 10 = ?
Answer: ______________
917 − 4 = ?
Answer: ______________
1011 − 6 = ?
Answer: ______________
1119 − 2 = ?
Answer: ______________
1211 − 8 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 5
- 2. 5
- 3. 3
- 4. 1
- 5. 8
- 6. 0
- 7. 2
- 8. 7
- 9. 13
- 10. 5
- 11. 17
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20