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4th Grade Math Vocabulary

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certain   an event that will definitely happen, an event with a probability of 1  
common denominator   any number, except zero, that is a multiple of the denominators of two or more fractions  
congruent   having the same shape and size  
convert   to change something into a different form of properties  
coordinate   an ordered pair of numbers that give the location of a point in a coordinate grid  
decimal   a dot separating the ones and tenths places in a decimal number  
equally likely   having the same chance, or probability  
equivalent   having the same value  
factor   an integer that divides equally into another  
formula   a general equation or rule  
grid   a pattern of horizontal and vertical lines, usually forming squares  
hexagon   a polygon with six sides  
hundredths   the value of a digit two places to the right of the decimal  
impossible   an event with a probability of zero  
inequality   the mathematical sentence that compares two unequal expressions using on of the symbols < or >  
least likely   very low probability  
less likely   a less (diminished) chance of happening  
likely   probably or apparently destined  
median   when numbers are arranged from least to greatest, the middle number of a set of numbers, or the mean of two middle numbers when the set has two middle numbers  
mode   the number that appears most frequently in a set of numbers (there may be one, more than one, or none present)  
more likely   an increased chance of happening  
most likely   the greatest chance of happening  
multiple   the product of a whole number and any other whole number  
mixed number   a number with an integer and fraction part or a number with an integer part and a decimal part  
octagon   an eight sided polygon  
ordered pair   a pair of numbers that gives the coordinates of a point on a grid in this order--horizontal coordinate, vertical coordinate (x,y)  
pentagon   a polygon with five sides  
polygon   a closed plane figure formed from line segments that meet only at their endpoints  
possible   has a chance of happening  
probability   the chance of an event occurring  
quotient   the result of division  
remainder   in whole number division, when you have divided as far as you can without using decimals, what has not yet been divided  
simplify   combine like terms and apply properties to an expression to make computation easier  
tenths   value of a digit one place to the right of the decimal  
uncertain   lacking or indicating lack of confidence or assurance  
unlikely   not likely to happen  


   


 

 

 

 

 

 
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