πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Start at 16 and count back 3. Where do you land? (16 − 3)
Answer: ______________
27 − 5 = ?
Answer: ______________
37 − 6 = ?
Answer: ______________
4Start at 14 and count back 2. Where do you land? (14 − 2)
Answer: ______________
513 − 2 = ?
Answer: ______________
65 − 1 = ?
Answer: ______________
7Start at 18 and count back 2. Where do you land? (18 − 2)
Answer: ______________
8Start at 15 and count back 2. Where do you land? (15 − 2)
Answer: ______________
9Start at 9 and count back 2. Where do you land? (9 − 2)
Answer: ______________
10Start at 15 and count back 3. Where do you land? (15 − 3)
Answer: ______________
1113 − 1 = ?
Answer: ______________
12Start at 8 and count back 2. Where do you land? (8 − 2)
Answer: ______________
Answer key: Subtract within 20
- 1. 13
- 2. 2
- 3. 1
- 4. 12
- 5. 11
- 6. 4
- 7. 16
- 8. 13
- 9. 7
- 10. 12
- 11. 12
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20