πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
115 − 2 = ?
Answer: ______________
215 − 8 = ?
Answer: ______________
320 − 5 = ?
Answer: ______________
4Start at 14 and count back 3. Where do you land? (14 − 3)
Answer: ______________
56 − 2 = ?
Answer: ______________
611 − 8 = ?
Answer: ______________
7Start at 12 and count back 3. Where do you land? (12 − 3)
Answer: ______________
8Start at 11 and count back 3. Where do you land? (11 − 3)
Answer: ______________
914 − 2 = ?
Answer: ______________
1015 − 7 = ?
Answer: ______________
11Start at 9 and count back 3. Where do you land? (9 − 3)
Answer: ______________
125 − 4 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 13
- 2. 7
- 3. 15
- 4. 11
- 5. 4
- 6. 3
- 7. 9
- 8. 8
- 9. 12
- 10. 8
- 11. 6
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20