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# Unit 2

### Rational Number Operations Multiplication and Division

TermDefinition
integer a set of whole numbers and their opposites
product the result when two or more numbers are multiplied
quotient the result when one number is divided by another
inverse operation operations that undo each other: addition and subtraction or multiplication and division
commutative property of multiplication The property states that two or more numbers can be multiplied in any order without changing the product a × b = b × a
decimal A number that uses a decimal point followed by digits to the right.
multiply To add the same number to itself several times.
digit A symbol used to construct a number.
place value The position of a digit in a number.
dividend The amount to be divided into equal parts or groups.
divisor The amount the dividend is divided by.
power of ten Ten multiplied by itself a certain number of times. Example: 10^1
rational number A number that can be expressed exactly by a ratio of two integers, and have a specific location on a number line.
mixed number A number consisting of a non-zero integer and a fraction.
improper fraction A fraction where the numerator is greater than or equal to the denominator.
simplify Reducing to lowest terms.
common factor The highest number that divides exactly into two or more numbers.
negative Having a value less than zero.
algorithm A process or a set of rules to be followed in calculations or problem solving.
reciprocal Two values that multiply together to get a product of 1. Example: 1/2 and 2/1
multiplicative inverse One of a pair of numbers whos product is one.
expense The cost required for something
income Money that an individual or business receives in exchange for providing a good or service.
profit A financial gain from a transaction.
Created by: Mrs Ott