Here are some printable Grade 1 math worksheets activities on various topics:
Adding and Subtracting Numbers
1. Counting Blocks: Students will practice counting blocks to solve addition and subtraction problems. [Printable worksheet](https://www.math-drills.com/grade-1-counting-blocks-worksheet.pdf)
2. Number Tracing: Students will practice tracing numbers to build their fine motor skills and recognize numbers. [Printable worksheet](https://www.math-drills.com/grade-1-number-tracing-worksheet.pdf)
3. Basic Addition and Subtraction: Students will practice solving addition and subtraction problems with numbers up to 10. [Printable worksheet](https://www.math-drills.com/grade-1-basic-addition-subtraction-worksheet.pdf)
Shapes and Patterns
1. Shape Sorting: Students will practice sorting shapes into different categories. [Printable worksheet](https://www.math-drills.com/grade-1-shape-sorting-worksheet.pdf)
2. Pattern Blocks: Students will practice creating and extending patterns using shape blocks. [Printable worksheet](https://www.math-drills.com/grade-1-pattern-blocks-worksheet.pdf)
3. Counting Shapes: Students will practice counting and recognizing shapes. [Printable worksheet](https://www.math-drills.com/grade-1-counting-shapes-worksheet.pdf)
Time and Money
1. Money Addition: Students will practice adding coins to solve money problems. [Printable worksheet](https://www.math-drills.com/grade-1-money-addition-worksheet.pdf)
2. Money Subtraction: Students will practice subtracting coins to solve money problems. [Printable worksheet](https://www.math-drills.com/grade-1-money-subtraction-worksheet.pdf)
3. Time Telling: Students will practice telling time to the hour and half hour. [Printable worksheet](https://www.math-drills.com/grade-1-time-telling-worksheet.pdf)
Measurement and Data
1. Measuring Objects: Students will practice measuring objects using units such as inches and feet. [Printable worksheet](https://www.math-drills.com/grade-1-measuring-objects-worksheet.pdf)
2. Data Collection: Students will practice collecting data and creating simple graphs. [Printable worksheet](https://www.math-drills.com/grade-1-data-collection-worksheet.pdf)
3. Compare Length: Students will practice comparing the lengths of objects. [Printable worksheet](https://www.math-drills.com/grade-1-compare-length-worksheet.pdf)
Word Problems
1. Basic Word Problems: Students will practice solving basic word problems. [Printable worksheet](https://www.math-drills.com/grade-1-basic-word-problems-worksheet.pdf)
2. Story Problems: Students will practice solving story problems that involve addition and subtraction. [Printable worksheet](https://www.math-drills.com/grade-1-story-problems-worksheet.pdf)
3. Picture Problems: Students will practice solving picture problems that involve comparing quantities. [Printable worksheet](https://www.math-drills.com/grade-1-picture-problems-worksheet.pdf)
Remember to adjust the difficulty level and content to suit your students' needs. You can also modify the worksheets to fit your teaching style and curriculum.