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: 12 − 3 = 12 − 2 − ?
Answer: ______________
2Get to ten first: 14 − 6 = 14 − 4 − ?
Answer: ______________
319 − 5 = ?
Answer: ______________
412 − 12 = ?
Answer: ______________
5Get to ten first: 12 − 7 = 12 − 2 − ?
Answer: ______________
619 − 17 = ?
Answer: ______________
716 − 11 = ?
Answer: ______________
818 − 11 = ?
Answer: ______________
9Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
1013 − 11 = ?
Answer: ______________
1120 − 17 = ?
Answer: ______________
12Get to ten first: 13 − 9 = 13 − 3 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 1
- 2. 2
- 3. 14
- 4. 0
- 5. 5
- 6. 2
- 7. 5
- 8. 7
- 9. 4
- 10. 2
- 11. 3
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20