πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Start at 18 and count back 3. Where do you land? (18 − 3)
Answer: ______________
215 − 9 = ?
Answer: ______________
312 − 9 = ?
Answer: ______________
414 − 1 = ?
Answer: ______________
58 − 7 = ?
Answer: ______________
619 − 2 = ?
Answer: ______________
7Start at 9 and count back 3. Where do you land? (9 − 3)
Answer: ______________
8Start at 16 and count back 3. Where do you land? (16 − 3)
Answer: ______________
912 − 5 = ?
Answer: ______________
108 − 6 = ?
Answer: ______________
1119 − 1 = ?
Answer: ______________
1213 − 4 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 15
- 2. 6
- 3. 3
- 4. 13
- 5. 1
- 6. 17
- 7. 6
- 8. 13
- 9. 7
- 10. 2
- 11. 18
- 12. 9
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20