What does "product" mean in math? Learn the definition of the word "product," whether it applies to addition or multiplication, and how to find a product of two numbers.

A 'sum' is the mathematical result of adding two or more numbers. Let us take an example of two numbers, 5 and 7. The term 'sum' means that you have... See full answer below.

One important use of the uppercase sigma symbol in mathematics is in summation notation. In summation notation, the sigma meaning refers to the sum, or addition, of multiple numbers or …

Learn about estimating in math. Discover what estimates are with the estimate definition, see estimate examples in math, and learn how to estimate numbers.

Understand what difference means in math, explore different keywords that refer to the operation of subtraction, and work examples.

Learn the FOIL definition in math and see how it is used as an acronym to multiply binomials. Study FOIL examples to understand how the FOIL method works.

Learn about sequences and series. Explore summation and how to use summation notation. Understand how to write a series in summation notation with examples.

The mean value of a set of numbers in math is the average of those numbers. You can calculate the mean value by adding up the numbers and then dividing the result by the number of numbers.

Discover the sigma notation. Learn how to use the sigma notation, its properties, formulas, and applications.

What are quantities beyond math? Learn the definition of "quantity" and how quantity is expressed in mathematics. View examples of how quantity is used in math and in other sciences.