Calculator Soup
Calculator Soup: Vote Percentage Calculator
Calculate the percentage weight of two or three numbers that make up a total sum of the sample set, as in vote percentage calculations for an election.
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.
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Percentage and Percentage Calculations: Audio Book
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.
NumberNut
Number Nut: Percentages
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.
Google
Google for Education: Percentages
This activity asks learners how to quickly and accurately calculate percent problems in our heads.
BBC
Bbc: Gcse Bitesize: Chemical Calculations
You should be able to calculate the masses of reactants and products from balanced equations, and the formula of a compound from information about reacting masses.
Math Open Reference
Math Open Reference: Percent
Explore percents with this easy reference guide. Learn how to convert fractions to percents and percents to fractions. Try the sliding bar to see how a percentage is calculated. Detailed explanations and examples are included.
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.
E-learning for Kids
E Learning for Kids: Math: Fashion Store: Fractions and Decimals
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...
Texas Instruments
Texas Instruments: Eating Out
In this activity, students examine data and make graphs to represent the data. They interpret the data and answer questions. They also learn to calculate percentages and angle measures.
Calculator Soup
Calculator Soup: Percentage Calculator
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.
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.
Calculator Soup
Calculator Soup: Percentage Change Word Problems
This calculator helps you practice word problems that involve percentage change.
Calculator Soup
Calculator Soup: Odds Probability Calculator
Convert stated odds to a decimal value of probability and a percentage value of winning and losing. This calculator will convert "odds for winning" an event or "odds against winning" an event into percentage chances of both winning and...
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: Tip Calculator
Calculate a tip or gratuity and get the total amount to pay. Enter your meal or dinner cost along with the tip percentage. If you are splitting the cost at a restaurant among several people you can divide by the number of people to get...
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.
Science Struck
Science Struck: A Simple Guide on How to Calculate Theoretical Yield
Explains vocabulary used when talking about the yield of a chemical reaction and models how to calculate the theoretical and the percentage yield in an example problem.
Calculator Soup
Calculator Soup: Fractions Table
Table shows incremental ordering of fractions with decimal and percentage equivalents.
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,...
Calculator Soup
Calculator Soup: Sales Tax Calculator
Calculate a simple single sales tax and a total based on the entered tax percentage.
Science Struck
Science Struck: Calculating Percent Difference
Explains and demonstrates how to calculate the percent difference using a formula.
Science Struck
Science Struck: Easy Methods to Calculate Percent Change
Explains and demonstrates how to calculate the percent change using a formula.