πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Start at 14 and count back 3. Where do you land? (14 − 3)
Answer: ______________
28 − 3 = ?
Answer: ______________
39 − 2 = ?
Answer: ______________
4Start at 11 and count back 3. Where do you land? (11 − 3)
Answer: ______________
512 − 5 = ?
Answer: ______________
611 − 5 = ?
Answer: ______________
79 − 8 = ?
Answer: ______________
8Start at 15 and count back 2. Where do you land? (15 − 2)
Answer: ______________
910 − 7 = ?
Answer: ______________
10Start at 10 and count back 2. Where do you land? (10 − 2)
Answer: ______________
1120 − 2 = ?
Answer: ______________
1220 − 8 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 11
- 2. 5
- 3. 7
- 4. 8
- 5. 7
- 6. 6
- 7. 1
- 8. 13
- 9. 3
- 10. 8
- 11. 18
- 12. 12
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20