πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
115 − 10 = ?
Answer: ______________
214 − 9 = ?
Answer: ______________
314 − 13 = ?
Answer: ______________
420 − 5 = ?
Answer: ______________
5Get to ten first: 13 − 6 = 13 − 3 − ?
Answer: ______________
615 − 7 = ?
Answer: ______________
712 − 9 = ?
Answer: ______________
818 − 17 = ?
Answer: ______________
913 − 10 = ?
Answer: ______________
1016 − 1 = ?
Answer: ______________
11Get to ten first: 13 − 9 = 13 − 3 − ?
Answer: ______________
1219 − 9 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 5
- 2. 5
- 3. 1
- 4. 15
- 5. 3
- 6. 8
- 7. 3
- 8. 1
- 9. 3
- 10. 15
- 11. 6
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20