All Math Content

Similar Content
Percent Lesson
Simplifying Fractions Lesson
Percent-Fractions Lesson
Percent-Decimals Lesson
Percent Game
Percent Conversion Quiz

Vocabulary mouseover for definition

Decimal
Another way to express a fractional part using powers of ten Decimal Places
Digits to the right of the decimal point Decimal Point
Symbol that separates the whole number from the fractional part Tenths
The first place right of the decimal point Hundredths
The second place right of the decimal point Thousandths
The third place right of the decimal point <
Less than >
Greater than =
Equal to Terminating Decimal
a decimal value that ends or terminates
example: 0.5, 3.44, 0.78 Repeating Decimal
a decimal value that repeats and continues on to infinity
example:
0.33 = 0.333333 continues on
0.4747=0.47474747 continues on Equivalent Fractions
Value of the fractions are the same Numerator
Top number in a fraction Denominator
Bottom number in a fraction Common Denominator
Denominators that are the same number Uncommon Denominator
Denominators that are not the same number Simplify Change fraction to its lowest terms Greatest Common Factor
The largest number that will divide into 2 or more numbers evenly Least Common Multiple
The smallest number that 2 or more numbers can be divided into evenly Convert
To change Improper Fraction
a fraction where the numerator is greater than the denominator Proper Fraction
a fraction where the numerator is less than the denominator Mixed Number
contains an integer, generally a whole number and a fractional part The Big One
The Big One: a fraction = to one whole, where the numerator and denominator are the same. Ex: 4/4, 5/5, 8/8.

PERCENTS

Introduction

Percents are used everywhere. Percents are used to find discounts and sale prices. Stores are always having sales and items discounted. Percents can be converted to fractions and decimals. You can also find the percent of a number. If you own a business, you want to make a profit. Percents help you figure out how much you need to make to keep your business open and how much you need to pay your employees.

Parts Per 100

"Percent" means parts per 100. So, if I have 2 cents, then I have 2 cents out of 100 cents or 2 percent of a dollar. 2 percent is written as 2%. It is also written as 2/100 or .02 (said 2 one hundredths). It may seem like 2 percent (written as either: 2%, .02, 2/100) is not a big amount, and I surely would not run to the bank to cash a check for 2 pennies or $0.02! However, if someone offered me 2 percent of $500,000, I would put on my running shoes to cash that check.

Whether I am trying to figure out what percentage or fraction of someone's dollar belongs to me or how much is left over after I spend that money, I need to be able to understand the relationship between fractions, percents, and decimals.