perimeter

the distance around a shape

area

the space inside a shape

factor

A number that is multiplied by another number

multiple

the product of a number with another number (ex: multiples of 4 are: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52)

volume

the amount of space occupied by an object

greatest common factor (GCF)

The largest factor that 2 or more numbers have in common.

least common multiple (LCM)

The smallest number, other than zero, that is a multiple of two or more given numbers; The LCM of 4 and 6 is 12

horizontal

straight across from side to side

vertical

straight up and down

diagonal

a straight line from one corner to another corner

exponent

a number that shows repeated multiplication; shows how many times a number is to be multiplied with itself

positive number

a number greater than zero

numerator

the dividend (top number) of a fraction

denominator

the divisor (bottom number) of a fraction

equivalent fraction

different fractions that are equal in value

product

the answer in a multiplication problem

quotient

the answer to a division problem

sum

the answer to an addition problem

mixed number

a number made up of a whole number and a fraction

improper fraction

a fraction whose numerator is larger than the denominator

factoring/prime factorization

breaking down a number until all of the factors are prime

factor tree

a diagram showing the prime factorization of a number

right angle

an angle that measures 90 degrees

difference

the answer to a subtraction problem

divisor

the number by which another number will be divided by.

dividend

the number that is divided by another number...it goes inside the division house.

prime number

A number which only has the factors of 1 and itself.

composite number

A number which has more than 2 factors