πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
116 − 1 = ?
Answer: ______________
217 − 14 = ?
Answer: ______________
314 − 2 = ?
Answer: ______________
420 − 10 = ?
Answer: ______________
5Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
620 − 3 = ?
Answer: ______________
720 − 7 = ?
Answer: ______________
811 − 8 = ?
Answer: ______________
918 − 5 = ?
Answer: ______________
1017 − 17 = ?
Answer: ______________
1114 − 11 = ?
Answer: ______________
12Get to ten first: 15 − 8 = 15 − 5 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 15
- 2. 3
- 3. 12
- 4. 10
- 5. 4
- 6. 17
- 7. 13
- 8. 3
- 9. 13
- 10. 0
- 11. 3
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20