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: 17 − 8 = 17 − 7 − ?
Answer: ______________
2Get to ten first: 12 − 6 = 12 − 2 − ?
Answer: ______________
3Get to ten first: 12 − 7 = 12 − 2 − ?
Answer: ______________
415 − 1 = ?
Answer: ______________
516 − 6 = ?
Answer: ______________
611 − 11 = ?
Answer: ______________
715 − 5 = ?
Answer: ______________
811 − 9 = ?
Answer: ______________
914 − 5 = ?
Answer: ______________
1012 − 11 = ?
Answer: ______________
1119 − 15 = ?
Answer: ______________
1219 − 17 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 1
- 2. 4
- 3. 5
- 4. 14
- 5. 10
- 6. 0
- 7. 10
- 8. 2
- 9. 9
- 10. 1
- 11. 4
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20