πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
18 − 2 = ?
Answer: ______________
218 − 3 = ?
Answer: ______________
320 − 1 = ?
Answer: ______________
45 − 4 = ?
Answer: ______________
55 − 2 = ?
Answer: ______________
617 − 1 = ?
Answer: ______________
720 − 7 = ?
Answer: ______________
820 − 4 = ?
Answer: ______________
911 − 8 = ?
Answer: ______________
1016 − 2 = ?
Answer: ______________
11Start at 18 and count back 2. Where do you land? (18 − 2)
Answer: ______________
12Start at 18 and count back 3. Where do you land? (18 − 3)
Answer: ______________
Answer key: Subtract within 20
- 1. 6
- 2. 15
- 3. 19
- 4. 1
- 5. 3
- 6. 16
- 7. 13
- 8. 16
- 9. 3
- 10. 14
- 11. 16
- 12. 15
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20