Unit 1 Order of Operations & Integers

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elitzelman  on September 15, 2011

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Unit 1 Order of Operations & Integers

 Integersthe set of whole numbers and their opposites
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Definitions

Integers the set of whole numbers and their opposites
Negative Numbers numbers less than zero
Positive Numbers numbers greater than zero
Zero is a part of the set of integers, but is neither positive or negative
Absolute value The distance a number is from zero on a number line
Opposites numbers that are the same distance from zero on a number line but in opposite directions
Whole numbers All positive integers (including zero)
Expression A number sentence with operations and no equals sign
Order of operations the order in which operations in an expression to be evaluated are carried out.
1. parentheses
2. exponents
3. multiplication and division (left to right)
4. addition and subtraction (left to right)
Grouping symbols parentheses and brackets that indicate the order in which operations should be performed
Distributive property a property indicating a special way in which multiplication is applied to addition of two or more numbers in which each term inside a set of parentheses can be multiplied by a factor outside the parentheses, such as a(b + c) = ab + ac
Exponents Tells how many times the base is used as a factor
Coordinate Plane A coordinate system formed by the intersection of a horizontal number line, called the x-axis, and a vertical number line, called the y-axis.
Ordered pair A pair of numbers, (x, y), that indicate the position of a point on a Cartesian plane.
Quadrant any of the four areas formed by the axes in a rectangular coordinate plane
X-axis the horizontal number line in a coordinate plane
Y-axis the vertical number line in a coordinate plane
Origin the point of intersection of coordinate axes, (0,0)
Plot To locate a point by means of coordinates

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