expression

a mathematical phrase containing variables or constants and including at least one operation. Example: 12 - X

equation

a mathematical sentence stating that two expressions are equal.

algebra

a branch of mathematics using symbols rather than numbers.

algebraic expression

a mathematical phrase that has at least one variable and one operation. Example: 10 X n or 10n

sum

the answer to an addition problem.

addend

the numbers being added.

difference

the answer to subtraction problem.

minuend

the number from which another number is being subtracted.

subtrahend

the number being subtracted from another number.

product

the answer to a multiplication problem.

factor

a number that divides another number without a remainder. The numbers that are multiplied together to get a product.

quotient

the answer in a division problem. Example: 45/9 = 5, 5 is the quotient.

divisor

the number used to divide another number. Example: In 12/3, 3 is the divisor.

dividend

the number being divided by another number. Example: In 12/3, 12 is the dividend.

axis

either of two lines drawn perpendicular to each other in a graph. These serve as the "X" and "Y" of the coordinate plane.