πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
120 − 3 = ?
Answer: ______________
212 − 1 = ?
Answer: ______________
38 − 6 = ?
Answer: ______________
4Start at 12 and count back 3. Where do you land? (12 − 3)
Answer: ______________
519 − 6 = ?
Answer: ______________
620 − 4 = ?
Answer: ______________
76 − 2 = ?
Answer: ______________
816 − 8 = ?
Answer: ______________
9Start at 15 and count back 2. Where do you land? (15 − 2)
Answer: ______________
1019 − 8 = ?
Answer: ______________
118 − 1 = ?
Answer: ______________
1210 − 2 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 17
- 2. 11
- 3. 2
- 4. 9
- 5. 13
- 6. 16
- 7. 4
- 8. 8
- 9. 13
- 10. 11
- 11. 7
- 12. 8
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20