πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
120 − 2 = ?
Answer: ______________
2Start at 18 and count back 2. Where do you land? (18 − 2)
Answer: ______________
3Start at 11 and count back 3. Where do you land? (11 − 3)
Answer: ______________
420 − 9 = ?
Answer: ______________
59 − 4 = ?
Answer: ______________
620 − 5 = ?
Answer: ______________
715 − 8 = ?
Answer: ______________
820 − 3 = ?
Answer: ______________
95 − 4 = ?
Answer: ______________
1018 − 3 = ?
Answer: ______________
1117 − 9 = ?
Answer: ______________
12Start at 14 and count back 3. Where do you land? (14 − 3)
Answer: ______________
Answer key: Subtract within 20
- 1. 18
- 2. 16
- 3. 8
- 4. 11
- 5. 5
- 6. 15
- 7. 7
- 8. 17
- 9. 1
- 10. 15
- 11. 8
- 12. 11
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20