πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Start at 13 and count back 2. Where do you land? (13 − 2)
Answer: ______________
27 − 7 = ?
Answer: ______________
35 − 4 = ?
Answer: ______________
4Start at 12 and count back 2. Where do you land? (12 − 2)
Answer: ______________
5Start at 15 and count back 2. Where do you land? (15 − 2)
Answer: ______________
67 − 5 = ?
Answer: ______________
715 − 6 = ?
Answer: ______________
818 − 6 = ?
Answer: ______________
911 − 6 = ?
Answer: ______________
108 − 6 = ?
Answer: ______________
1119 − 7 = ?
Answer: ______________
1216 − 8 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 11
- 2. 0
- 3. 1
- 4. 10
- 5. 13
- 6. 2
- 7. 9
- 8. 12
- 9. 5
- 10. 2
- 11. 12
- 12. 8
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20