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In this video, Mahalo math expert Julie Clark shows you how to convert percentages into decimals.
How to Convert Percents to Decimals
Percentage describes an amount "out of 100".c For example, 22 out of 100 is 22%, and 243 out of 100 is 243%. A decimal number can be also used to describe a fraction out of 100.c
You can change a percent into a decimal by moving the decimal point two places to the left.
1. For example, begin with 25%. 2. If there is no decimal shown, you can insert it at the end of the whole number to make it 25.0%.
3. To remove the percent, move the decimal point to the left twice. This makes 0.25, which is the decimal form of the percent.
If you have a larger percent, such as 314.2%, move the decimal point over two places. This will become 3.142.
After you have converted the percent to a decimal number, you can convert it back to a percent by moving the decimal point two places to the right (or by multiplying the number by 100).c
References
Trash
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Introduction to Numbers 5:45
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Classification of Numbers 12:48
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An Introduction to Whole Numbers 0:00
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Whole Numbers and Place Value 0:00
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Prime and Composite Numbers 2:54
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Definition of Rational Numbers 2:49
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What is Expanded Form? 0:00
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Rewrite Numbers in Expanded Form with Exponen... 0:00
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The Mean, Median and Mode 4:23
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Word Problem: Identifying Integers (Level 1) 0:48
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Word Problem: Identifying Integers (Level 3) 1:00
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Quiz: Whole Numbers into Expanded Form 0:54
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Basic Mathematical Functions 20:54
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Fundamental Theorem of Arithmetic 4:09
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Single Digit Addition and Subtraction 2:28
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Double Digit Addition 0:00
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Double Digit Subtraction 0:00
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Basic Multiplication 2:18
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The Lattice Method of Multiplication 0:00
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Making Decimal Multiplication Easier 2:15
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How to Do Long Division 0:00
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Tests for Divisibility 7:30
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How to Calculate Your Gas Mileage 0:00
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Two Trains Word Problem 1:03
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Gold Coins Brain Teaser 1:11
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Quiz: Finding Interest 0:00
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Numbers and Factors 31:09
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Prime Factorization 7:03
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Factoring Whole Numbers 0:00
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How to Find a Common Denominator 5:25
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Greatest Common Factor (GCF) 4:56
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Lowest Common Multiple (LCM) 5:24
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Finding the GCF and LCM 3:13
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Alternative Methods for Solving GCF and LCM 1:46
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The GCF-LCM Product Theorem 3:22
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Quiz: Factoring Whole Numbers 0:00
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Mixed Numbers and Fractions 7:29
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Fractions as Parts of a Whole 0:00
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How to Notate Fractions 0:00
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How to Convert Mixed Numbers into Fractions 1:22
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How to Convert Fractions into Mixed Numbers 0:00
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How to Convert Fractions into Decimals 2:15
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How To Reduce Fractions 0:00
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How to Add Fractions 0:00
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How to Subtract Fractions 1:53
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How to Multiply Fractions 0:00
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How to Divide Fractions 0:00
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How to Add or Subtract Mixed Numbers 0:00
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How to Multiply Mixed Numbers 0:00
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How to Divide Mixed Numbers 0:00
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Word Problem: Fractions and Proportions 1:07
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Word Problem: Elmo the Painter 0:52
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Quiz: Mixed Numbers 0:00
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Decimals and Radicals 0:53
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An Introduction to Decimals 0:00
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Ordering Decimals 0:00
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How to Write a Decimal in Expanded Form 0:00
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How to Write Decimals in Scientific Notation 0:00
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How to Convert Percents to Decimals 0:00
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How to Divide Decimals 0:00
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How to Divide Decimals in the Dividend 0:00
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How to Add Radicals 0:00
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How to Simplify Radicals 0:00
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Quiz: Decimals into Expanded Form 0:53
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Quiz: Convert Fractions to Decimals 0:00
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Quiz: Convert Decimals to Fractions 0:00
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Percentages 17:21
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Mathematical Properties of Numbers 2:10
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Order of Operations 2:08
Meet Our Experts
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Julie Clark
Julie Clark is a high school math teacher with over seven years of classroom experience. Clark is also a motivational speaker with the "Making It Count" program, speaking at a number of schools across 11 states and reaching over 10,000 students. Julie says that her favorite thing about teaching math is "getting that light bulb to go off for the student that 'doesn't get' or 'hates' math."
