Calculator Soup
Calculator Soup: Fraction to Percent Calculator
Convert a fraction to a percent. Convert proper and improper fractions to percentages. This calculator shows the steps and work to convert a fraction to a percentage number.
Calculator Soup
Calculator Soup: Fractions Table
Table shows incremental ordering of fractions with decimal and percentage equivalents.
Calculator Soup
Calculator Soup: Percent to Decimal Calculator
Input the percent value that you would like to convert to a decimal. This calculator divides by 100 to convert percents to decimal values.
Calculator Soup
Calculator Soup: Decimal to Percent Calculator
Convert decimals to percentages with this calculator. Input a decimal number to convert both the whole number and decimal part of the number to a percent value.
Calculator Soup
Calculator Soup: Mixed Number to Percent Calculator
Convert mixed numbers or mixed fractions to percents. The mixed number to percentage calculator finds the decimal equivalent by finding the decimal value of the fraction, adding the decimal to the whole number part of the mixed number,...
Math Is Fun
Math Is Fun: Percentage Calculator
Use this percentage calculator to "calculate a percent of a value" or "find the percent change between two values." Provided answers include steps for carrying out the calculations yourself.
Wyzant
Wyzant: Percentage Calculator
WyzAnt provides applets that allow the user to input as much of the percentage question that is known, and it will compute the rest.
Math Is Fun
Math Is Fun: Percentages
The learning activity investigates percentages. Topics examined are converting percents to decimals, converting percents to fractions, and the percentage difference. Links to additional resources and a percentage calculator are included.
PBS
Pbs Teachers: Sports and Math: Batting Averages and More
Set up a spreadsheet using a computer or graphing calculator, and perform calculations using columns. Calculate percentages and solve a system of equations regarding baseball statistics.
Fun Brain
Fun Brain: Penguin Waiter (Calculating Percents Game for Super Brains)
Given the total price paid for a meal, including the tip (given as a percentage of the meal's cost), players are asked to calculate the original bill.
Fun Brain
Fun Brain: Penguin Waiter (Calculating Percents Game)
Players must calculate the correct tip to leave their penguin waiter based on a percentage of the cost of their meals.
Free Math Help
Free Math Help: Batting Average
Here is an explanation about how to calculate a player's batting average.
Amby Duncan-Carr
Amby's Math Instruction: Using the Proportion Method to Solve Percent Problems
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...
Wyzant
Wyzant: Algebra Help
Heres a comprehensive review of the basics of algebra. WyzAnt includes lessons on varied topics, calculators that show step-by-step solutions, and interactive worksheets for practicing and testing your skills. Just choose a topic and use...
PBS
Pbs Learning Media: A Tip on Tipping
This TV 411 segment features a lesson from Question Man on how to informally calculate 15% tips at restaurants.
PBS
Pbs Learning Media: What's in That Box of Cookies, Anyway?
In this video segment from TV 411, learn how to read nutrition labels on food containers and calculate the calorie content of different serving amounts.
Other
Quick Math: Numbers Percentages
This QuickMath activity changes percentages to decimals or fraction and vice versa. It also calculates a certain percent of a number or vice versa.
Education Development Center
Tune in to Learning: Multiple Percents
Have you ever seen an item that you wanted on sale for 15% of its original price? Have you tried to figure out what the sale price would be? Using this interactive lesson from T.V. 411, you can learn to calculate discounts with percentages.
Oswego City School District
Regents Exam Prep Center: Counting Activity With Percents
The learning activity explores percents. Students calculate percents using a table and answer questions on the math concept.
Cuemath
Cuemath: Discounts
A comprehensive guide for learning all about discounts with definitions, how to calculate a discount, solved examples, and practice questions.
National Council of Teachers of Mathematics
Nctm: Figure This: Majority Vote
Cast your vote for this math challenge that explores calculating percentages as it relates to voting. Discover how mastering this skill will be beneficial in real life situations. A one page activity from the NCTM Math Challenges for...
Illustrative Mathematics
Illustrative Mathematics: A Ced, a Rei Basketball
In this task, two brothers track how many games they have each won. Students are asked to make calculations based on the percentage of games won. They set up a rational equation (and a rational inequality) in one variable, and then solve...
University of Cambridge
University of Cambridge: Nrich: The Magic Number and the Hepta Tree
Use your calculator to help you solve this challenge at this one page website. You can check your solution with only one click of the mouse.
Shmoop University
Shmoop: Ratios & Percentages: Working With Percents
Students learn how to find a percent of a number. The mathematics resource consists of examples and practice problems with answers.