Math Vocabulary

The answer to an addition (+) problem

SUM

The answer to a subtraction (-) problem

DIFFERENCE

The answer to a multiplication (x) problem

PRODUCT

The answer to a division problem

QUOTIENT

FACTORS Numbers that will evenly divide into another number. (numbers you can multiply together to get another number) Example: factors of 12: 1, 2, 3, 4, 6, 12 (1 x 12, 2 x 6, 3 x 4)

Prime Number A whole number greater than one that has ONLY TWO factors; 1 and itself Examples: 2, 3, 5, 7, 11, 13, 17, ...

Composite Number A number that has MORE than TWO factors. (there is more than one way to multiply to get that number) Examples: 9 -- 1 x 9, 3 x 3

Greatest Common Factor (GCF) The biggest factor that two or more numbers has in common. Examples: 12: 1, 2, 3, 4, 6, 12 24: 1, 2, 3, 4, 6, 12, 24 The GCF of 12 and 24 is 12.

Least Common Multiple (LCM) Smallest number that is a multiple of two or more numbers. The LCM of 3 and 4 is 12. 3: 3, 6, 9, 12 4: 4, 8, 12, 16

Parts of a Fraction Top number is called NUMERATOR Bottom number is called DENOMINATOR

Parallel Lines Lines that are always the same distance apart. They will NEVER touch!

Perpendicular Lines When two lines intersect to form a right angle (90o)

Perimeter The distance around the outside of a shape. To find the perimeter, ADD the length of all sides.

AREA Length Width The amount of space INSIDE a shape. To find the AREA, multiply LENGTH by WIDTH. Length Width