πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
15 − 4 = ?
Answer: ______________
2Start at 8 and count back 3. Where do you land? (8 − 3)
Answer: ______________
314 − 1 = ?
Answer: ______________
49 − 1 = ?
Answer: ______________
59 − 2 = ?
Answer: ______________
611 − 9 = ?
Answer: ______________
7Start at 15 and count back 2. Where do you land? (15 − 2)
Answer: ______________
8Start at 8 and count back 2. Where do you land? (8 − 2)
Answer: ______________
9Start at 11 and count back 3. Where do you land? (11 − 3)
Answer: ______________
10Start at 15 and count back 3. Where do you land? (15 − 3)
Answer: ______________
117 − 5 = ?
Answer: ______________
1217 − 7 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 1
- 2. 5
- 3. 13
- 4. 8
- 5. 7
- 6. 2
- 7. 13
- 8. 6
- 9. 8
- 10. 12
- 11. 2
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20