# Math Word of the Day" - 8th Grade - Six Weeks #1

fraction

a part of a whole expressed using a numerator and a denominator

decimal

a number with one or more digits to the right of the decimal point

percent

a ratio that compares a number to 100

convert

to change from one form to another

equivalent

equal in amount or value

integer

a postive or negative number, including zero, that does not contain a fraction or decimal

rational number

any number that can be expressed as a ration of two integers

irrational number

a number whose decimal form is nonterminating and nonrepeating

square root

a number which when multiplied by itself gives the original number

scientific notation

a method of writing very large or very small numbers by using powers of 10

operation

calculation by mathematical methods

product

the answer to a multiplication problem

quotient

the answer to a division problem

divedend

the number being divided in a division problem

equation

a mathematical statement that two expressions are equal

reasonable

something that makes sense and seems logical

estimate

an approximation of a number based on reasonable assumptions

dependent events

when the outcome of one event does affect the outcome of a second event

independent events

when the outcome of one event does not affect the outcome of the second event

experimental probability

# of favorable outcomes / # of possible outcomes

theoretical probability

the ratio of the number of favorable outcomes to the total possible outcomes

sample space

the set of all possible outcomes

outcome

a possible result of an experiment

event

a set of outcomes in a probability experiment

random

by chance

compound event

an event made up of two or more simple events

simple event

an event that consists of a single outcome

population

all the cases in a group, from which samples may be drawn for a study

biased question

a question that makes one answer appear better than another