Overview
This material focuses on how to calculate the percentage of a given number, with both explanations and practice resources provided.
How to Calculate Percentages
- To find a percentage of a number, multiply the number by the percentage (as a decimal).
- Example: 20% of 50 is calculated as 0.20 × 50 = 10.
- To change a percentage to a decimal, divide by 100 (e.g., 25% = 0.25).
- The general formula for finding a percent of a number is: Percent × Number = Result.
- To find what percent one number is of another, use (Part ÷ Whole) × 100.
Practice and Related Resources
- Many videos and quizzes are available online to practice percentage calculations.
- Worksheets, quizzes, and free math practice tests can help reinforce percentage skills.
- Math lesson videos are available for different grade levels, including explanations and example problems.
Key Terms & Definitions
- Percentage — A way of expressing a number as a fraction of 100, denoted using the % symbol.
- Decimal Form — The percentage value written as a decimal for calculations (e.g., 40% = 0.4).
- Part — The portion or segment of the total amount being considered.
- Whole — The total amount or base value from which a percentage is taken.
Action Items / Next Steps
- Practice calculating percentages using online quizzes and worksheets.
- Use video tutorials to review step-by-step solutions for percentage problems.
- Try sample problems by converting percentages to decimals and multiplying by given numbers.