πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
119 − 3 = ?
Answer: ______________
29 − 5 = ?
Answer: ______________
310 − 7 = ?
Answer: ______________
45 − 4 = ?
Answer: ______________
518 − 4 = ?
Answer: ______________
6Start at 12 and count back 3. Where do you land? (12 − 3)
Answer: ______________
76 − 1 = ?
Answer: ______________
813 − 5 = ?
Answer: ______________
97 − 1 = ?
Answer: ______________
10Start at 9 and count back 2. Where do you land? (9 − 2)
Answer: ______________
11Start at 15 and count back 3. Where do you land? (15 − 3)
Answer: ______________
1220 − 3 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 16
- 2. 4
- 3. 3
- 4. 1
- 5. 14
- 6. 9
- 7. 5
- 8. 8
- 9. 6
- 10. 7
- 11. 12
- 12. 17
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20