πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
120 − 15 = ?
Answer: ______________
217 − 2 = ?
Answer: ______________
311 − 4 = ?
Answer: ______________
416 − 12 = ?
Answer: ______________
517 − 4 = ?
Answer: ______________
612 − 6 = ?
Answer: ______________
717 − 8 = ?
Answer: ______________
8Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
912 − 4 = ?
Answer: ______________
1012 − 1 = ?
Answer: ______________
1115 − 1 = ?
Answer: ______________
12Get to ten first: 14 − 5 = 14 − 4 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 5
- 2. 15
- 3. 7
- 4. 4
- 5. 13
- 6. 6
- 7. 9
- 8. 4
- 9. 8
- 10. 11
- 11. 14
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20