πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
115 − 13 = ?
Answer: ______________
217 − 12 = ?
Answer: ______________
314 − 11 = ?
Answer: ______________
420 − 11 = ?
Answer: ______________
512 − 1 = ?
Answer: ______________
617 − 8 = ?
Answer: ______________
719 − 12 = ?
Answer: ______________
8Get to ten first: 12 − 5 = 12 − 2 − ?
Answer: ______________
9Get to ten first: 15 − 6 = 15 − 5 − ?
Answer: ______________
1016 − 1 = ?
Answer: ______________
11Get to ten first: 14 − 8 = 14 − 4 − ?
Answer: ______________
12Get to ten first: 12 − 8 = 12 − 2 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 2
- 2. 5
- 3. 3
- 4. 9
- 5. 11
- 6. 9
- 7. 7
- 8. 3
- 9. 1
- 10. 15
- 11. 4
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20