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Term | Definition |
---|---|
Zero Property | Anything multiplied by zero |
Distributive Property | Multiplying a sum (or difference) by a number is the same as multiplying each number (or difference) by the number and adding (or subtracting) the products. |
Identity Property | the properties that state that the sum of any number and zero is that number and the product of any number and 1 is that number. |
Associative Property of addition | Addends can be regrouped and the sum remains the same 1+(3+5)=(1+3)+5 |
Commutative Property Addition | the order of addends can be changed and the sum remains the same. 3+7=7+3 |
Associative Property of Multiplacation | factors can be regrouped and the product remains the same. 2*(4*10)=(2*4)*10 |
Commutative Property of Multiplacation | the order of factors can be changed and the product remains the same. 3*5=5*3 |
Prime Number | a number with the factors one and itself |
Composite Number | a whole number greater than one with more than two factors |
Acute angle | an angle more than zero but less than 90 |
Obtuse Angle | an angle whose measure is between 180 and 90 |
strait angle | an angle measuring 180 |
acute triangle | a triangle whose angles are acute |
equilateral triangle | a triangle whose sides all have the same length |
isosceles triangle | a triangle with two sides that are the same length |
obtuse triangle | a triangle in which one angle is an obtuse angle |
right triangle | a triangle in which one angle is a right angle |
scalene triangle | a triangle in which no sides have the same length |
Congruent Figures | Figures that have the same size and shape |
cube | a solid figure with six flat surfaces called faces.all the faces are squares |
face | a flat surface of a polyhedron. |
edge | a line segment where two faces meet in a solid figure |
average | the # found by adding all the data and dividing by the # of data. also called the mean. |
area | The number of square units needed to cover a surface of figure |
bar graph | a graph that uses bars to show and compare data. |
capacity | The volume of a container measured in liquid units |
celcius | a unit of measure for measuring temperature in the metric system. |
circle | A closed plane figure made up of all the points that are the same distance from a given point |
circle graph | a graph in the shape of a circle that shows how all (100%) of set data has been divided into parts |
circumference | The distance around a circle |
common denominators | a # that is the denominator of two or more #'s. |
common factor | A number that is a factor of two or more given numbers |
common multiple | a # that is a multiple of two or more #'s. |
cone | A solid figure with one circular base; the points on the circle are joined to one point outside the base |
congruent figures | figures that have the same size and shape. |
cubed | A name for a number to the third power |
cup | a customary unit of capacity. 1 cup equals 8 fluid oz. |
data | Collected information |
decimal | a # with 1 or more places to the right of a decimal point |
difference | The number that results from subtracting 1 # from another |
degree | a unit of measure for angles and temperature |
denominator | the # below the fraction bar in a fraction |
digits | the symbols used to show numbers:0,1,2,3,4,5,6,7,8,9 |
divedend | the number to be divided |
divisor | the number used to divide another number |
edge | a line segment where two faces meet in a solid figure. |
elapsed time | the difference between two times |
equally likely | having the same chance of occurring. |
equal ratios | ratios that can be represented by equivalent fractions. |
equation | a # sentence that uses an equal sign to show that two expressions have the same value.9+3=12 |
pi | the ratio of the circumference of a circle to its diameter.Pi is approximately 3.14 or 22/7 |
estimate | to give an approximate value rather than an exact answer. |
evaluate | to find the value of an expression. |
expanded form | a way to write a number that shows the place value of each digit. |
exponent | a number that tells how many times the base is used as a factor. |