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: 13 − 8 = 13 − 3 − ?
Answer: ______________
220 − 19 = ?
Answer: ______________
3Get to ten first: 12 − 4 = 12 − 2 − ?
Answer: ______________
419 − 8 = ?
Answer: ______________
513 − 4 = ?
Answer: ______________
6Get to ten first: 11 − 9 = 11 − 1 − ?
Answer: ______________
7Get to ten first: 11 − 2 = 11 − 1 − ?
Answer: ______________
8Get to ten first: 16 − 7 = 16 − 6 − ?
Answer: ______________
912 − 7 = ?
Answer: ______________
1017 − 7 = ?
Answer: ______________
1113 − 7 = ?
Answer: ______________
12Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 5
- 2. 1
- 3. 2
- 4. 11
- 5. 9
- 6. 8
- 7. 1
- 8. 1
- 9. 5
- 10. 10
- 11. 6
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20