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 − 5 = 13 − 3 − ?
Answer: ______________
2Get to ten first: 15 − 8 = 15 − 5 − ?
Answer: ______________
315 − 2 = ?
Answer: ______________
4Get to ten first: 13 − 6 = 13 − 3 − ?
Answer: ______________
520 − 18 = ?
Answer: ______________
612 − 9 = ?
Answer: ______________
715 − 4 = ?
Answer: ______________
8Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
9Get to ten first: 14 − 6 = 14 − 4 − ?
Answer: ______________
1019 − 3 = ?
Answer: ______________
1119 − 16 = ?
Answer: ______________
12Get to ten first: 11 − 8 = 11 − 1 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 2
- 2. 3
- 3. 13
- 4. 3
- 5. 2
- 6. 3
- 7. 11
- 8. 2
- 9. 2
- 10. 16
- 11. 3
- 12. 7
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20