Here are some free subtraction and addition worksheets suitable for 1st-grade students:
Addition Worksheets:
1. Basic Addition:
* Add single-digit numbers (1-10)
* [PDF](https://www.worksheetlibrary.com/1st-grade-math/addition-1.pdf)
2. Number Lines:
* Use number lines to solve simple addition problems
* [PDF](https://www.worksheetlibrary.com/1st-grade-math/number-line-addition-1.pdf)
3. Adding Objects:
* Count and add small groups of objects
* [PDF](https://www.worksheetlibrary.com/1st-grade-math/object-addition-1.pdf)
Subtraction Worksheets:
1. Basic Subtraction:
* Subtract single-digit numbers (1-10)
* [PDF](https://www.worksheetlibrary.com/1st-grade-math/subtraction-1.pdf)
2. Number Lines:
* Use number lines to solve simple subtraction problems
* [PDF](https://www.worksheetlibrary.com/1st-grade-math/number-line-subtraction-1.pdf)
3. Taking Away Objects:
* Count and subtract small groups of objects
* [PDF](https://www.worksheetlibrary.com/1st-grade-math/object-subtraction-1.pdf)
Mixed Addition and Subtraction Worksheets:
1. Mixed Math:
* Mix and match addition and subtraction problems (1-10)
* [PDF](https://www.worksheetlibrary.com/1st-grade-math/mixed-math-addition-subtraction-1.pdf)
2. Word Problems:
* Solve simple word problems involving addition and subtraction
* [PDF](https://www.worksheetlibrary.com/1st-grade-math/word-problems-addition-subtraction-1.pdf)
Remember to review the worksheets with your child, and encourage them to use visual aids like number lines or counting blocks to help with problem-solving.
