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#### Complete list of Terms and Definitions for Grade Math 3

Terms Definitions
11+11 22
589*46 27,094
12 + 6 18
approximately very close, not exact
ounce A unit for measuring weight
equilateral having all the sides equal:
outcome a result of a probability experiment
unit rate The rate in lowest terms.
Like Fractions Fractions with the same denominator
notation special system of signs or symbols
difference The result obtained when one number is subtracted from another.
evaluate Find the value of powers by multiplying the factors.
An amount that is left after division. remainder
cohere to stick together; be united; hold fast, as parts of the same mass:
repeating decimals a decimal who’s decimal digits eventually repeat in the same pattern
flip (reflection) a transformation that results in a mirror image of a figure
origin the point (0,0) where the x-axis and the y-axis meet in a coordinate plane
tens digits that are two places to the left of the decimal
cube a space figure with 6 congruent faces, 8 vertices, and 12 equal edges
standard form writing a number in regular number formexample: 325 or 15
repeating decimal a decimal numeral that, after a certain point, consists of a group of one or more digits repeated ad infinitum, as 2.33333 &acirc;&euro;&brvbar;. or 23.0218181818 &acirc;&euro;&brvbar;.
PRIME FACTORIZATION expressing a composite number as the product of two or more prime numbers
mixed number a number written as a whole number and a fraction
edge The line segment where two faces of a solid figure meet
Inverse Operations Operations that undo each other - they are opposit
frequency table a chart that shows data grouped into intervals
quartile Can refer to any of the four parts of a box-and-whisker plot. Each quartile contains one-fourth, or 25% of the data.
order of operations Rules that tell which steps to follow when solving an expression
Whole Numbers The set of numbers 0, 1, 2, 3, 4
The sum of any number and 0 is equal to the initia identity property of addition
2+3=5 2+4=6
13 + 8 21
quart 2 pints;large measuring sup
ratio A comparison of two numbers.
product answer to a multiplication problem
products The result obtained by multiplying two numbers or variables.
translation a transformation that moves each point of a figure the same distance in the same direction; also known as a slide
associative pertaining to or resulting from association.
quotient The result obtained from dividing one number or variable (the divisor) into another number or variable (the dividend).
x-axis the horizontal number line on a coordinate plane
data a collection of facts gathered by observation, questioning, or measuring
= Equal to, having the same amount, size, value, or being identical.
diameter a straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end.
tree diagrams A connected, branching graph used to diagram probablilties or factors.
VERTICAL AXIS Shows the size of the data value.
outliers A number separated from the rest of the data.
hexagon a polygon with 6 sides and 6 vertices
Mode The number or item that occurs most often in a set of data
quart a unit of liquid measure of capacity, equal to one fourth of a gallon, or 57.749 cubic inches (0.946 liter) in the U.S. and 69.355 cubic inches (1.136 liters) in Great Britain.
tax The percent the original cost of an item that is added to the item by law at the time.
side a line segment that is part of a plane figure
radius A line segment from the center of a circle to any point on its circumference.
customary system a system of measurement used in the U.S.
multiple A multiple of a number is the product of that number and another whole number. In 4x5=20, 20 is the multiple of 4 and 5.
sale price The price paid after the discount has been subtracted.
ray a part of a line that has 1 endpoint and goes on and on in one direction
Acute Angle An angle that has a measure less than a right angle (less than 90 degrees)
FRACTION part of a region, an object, or a set; any number a/b where b does not equal 0
Zero Property of Division 0 divided by any number except 0 is 0. A number cannot be divided by zero.