Here are some math worksheets for 1st grade addition and subtraction:
Addition Worksheets:
1. [Addition to 10](https://www.math-drills.com/1st-grade-addition-worksheet-1-10.pdf)
Example problem: 2 + 3 = __
Answer key: 5
2. [Addition within 20](https://www.math-drills.com/1st-grade-addition-worksheet-1-20.pdf)
Example problem: 5 + 7 = __
Answer key: 12
3. [Addition with numbers up to 5](https://www.math-drills.com/1st-grade-addition-worksheet-0-5.pdf)
Example problem: 2 + 1 = __
Answer key: 3
Subtraction Worksheets:
1. [Subtraction from 10](https://www.math-drills.com/1st-grade-subtraction-worksheet-1-10.pdf)
Example problem: 8 – 3 = __
Answer key: 5
2. [Subtraction within 20](https://www.math-drills.com/1st-grade-subtraction-worksheet-1-20.pdf)
Example problem: 14 – 9 = __
Answer key: 5
3. [Subtraction with numbers up to 5](https://www.math-drills.com/1st-grade-subtraction-worksheet-0-5.pdf)
Example problem: 4 – 1 = __
Answer key: 3
Combination Addition and Subtraction Worksheets:
1. [Addition and subtraction to 10](https://www.math-drills.com/1st-grade-addition-and-subtraction-worksheet-1-10.pdf)
Example problems:
* 3 + 2 = __
* 6 – 2 = __
Answer key:
* 3 + 2 = 5
* 6 – 2 = 4
2. [Addition and subtraction within 20](https://www.math-drills.com/1st-grade-addition-and-subtraction-worksheet-1-20.pdf)
Example problems:
* 8 + 5 = __
* 15 – 8 = __
Answer key:
* 8 + 5 = 13
* 15 – 8 = 7
These worksheets are designed to help 1st grade students practice their addition and subtraction skills. You can adjust the difficulty level and type of problems to suit your child's needs. Remember to provide feedback and encouragement as they work through the worksheets!
