πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
110 − 3 = ?
Answer: ______________
211 − 6 = ?
Answer: ______________
318 − 3 = ?
Answer: ______________
416 − 5 = ?
Answer: ______________
520 − 5 = ?
Answer: ______________
6Start at 11 and count back 2. Where do you land? (11 − 2)
Answer: ______________
75 − 4 = ?
Answer: ______________
8Start at 10 and count back 3. Where do you land? (10 − 3)
Answer: ______________
916 − 4 = ?
Answer: ______________
1018 − 6 = ?
Answer: ______________
11Start at 11 and count back 3. Where do you land? (11 − 3)
Answer: ______________
128 − 4 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 7
- 2. 5
- 3. 15
- 4. 11
- 5. 15
- 6. 9
- 7. 1
- 8. 7
- 9. 12
- 10. 12
- 11. 8
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20