Test your knowledge of the percent of a number.

The students will be working primarily with the concept of % of a number. They will calculate the number of people expected to vote when given the population and % of registered voters along with historical data on percentage of voter...

Practice using your graphing calculator for proportion problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.

Learn to use the Proportion Method to calculate percentage problems, then practice your skill at the bottom of the page. Extra practice is provided for solving problems with percents. The site allows you to check your answer after...

Dr. Math is asked about calculating sales tax. A quick and easy to follow explanation of how it works using fractions, decimals, ratio, and percent.

Players must calculate the correct tip to leave their penguin waiter based on a percentage of the cost of their meals.

This audio book, narrated by author Mark Bishop, provides examples of how to calculate percentages. Calculations for percent mass and volume are shown. Also find links for tutorials and power points about other chemistry topics.

Examples are solved to demonstrate using proportions to solve percent problems. Exercises are provided that allow you to check your answers.

Use this online calculator game to practice using a calculator. The game keeps track of your correct and incorrect answers. It also shows you a percent score of your correct answers as you play.

This online calculator converts a percent to a fraction. If the percent value is greater than 100% it is converted into a mixed number fraction. Enter percents to convert them into fractions. The number you enter can also have decimal...

Input the percent value that you would like to convert to a decimal. This calculator divides by 100 to convert percents to decimal values.

This lesson will demonstrate how to compare a calculated density from and experiment to the "actual" density reported in reference sources. It is 3 of 3 in the series titled "Percent Difference Calculations."

Find a percentage or work out the percentage given numbers and percent values. Use percent formulas to figure out percentages and unknowns in equations. Add or subtract a percentage from a number or solve the equations.

The learning activity examines how to convert a fraction to a percent. The resource consists of calculator steps, explanations, and examples with solutions.

This section from the online textbook, "An Introduction to Chemistry", gives the steps to calculate the percent of an element in a compound. A few example calculations are shown. Also find links to chapter maps and power points for other...

Students calculate the percent of the total expenses for sources of income and expenses. Learners then use this information to create a circle graph. The handout is available in PDF format.

Compare and order fractions, integers, mixed numbers and decimals in ascending or descending order. Order fractions from least to greatest or from greatest to least.

Sharpen your logic and percent skills while working on this challenge. A strategy for solving the problem and the solution are available from links on the left.

Did you know that the word percent is based on two ancient words, "Per" and "Centum" which means part of one hundred? Learn how to calculate percent and find out how it is used in business.

Test your bargin shopping skills by figuring out which discount offers the greatest savings. A one page activity from the NCTM Math Challenges for Families series that focuses on understanding and calculating percentages. Connections...

The purpose of this task is for middle schoolers to calculate the percent increase and relative cost in a real-world context. This task is part of a set collaboratively developed with Money as You Learn, an initiative of the President's...

This QuickMath activity changes percentages to decimals or fraction and vice versa. It also calculates a certain percent of a number or vice versa.

The general manager of a fitness center explains how numerical calculations, percentages, and ratios are critical to his job in this video from KAET. In the accompanying classroom activity, students explore percentages, fractions, and...

On this interactive website students practice various math skills using a real-life scenario by picking out clothing. Those skills include calculating percentages using fractions and calculating the new cost of a product after a...