Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Real Numbers Algebra

Sponsored Links

Commutative Law for Addition

Commutative Law for Addition can be expressed as

a + b = b + a         (1)

Associative Law for Addition

Associative Law for Addition can be expressed as

(a + b) + c = a + (b + c)         (2)

Identity Law for Addition

Identity Law for Addition can be expressed as

a + 0 = 0 + a         (3)

Inverse Law of Addition

Inverse Law of Addition can be expressed as

a + (-a) = (-a) + a = 0         (4)

Associative Law for Multiplication

Associative Law for Multiplication can be expressed as

a · (b · c) = (a · b) · c         (5)

Inverse Law for Multiplication

Inverse Law for Multiplication can be expressed as

a · (1 / a) = (1 / a) · a = 1, a ≠ 0           (6)

Identity Law for Multiplication

Identity Law for Multiplication can be expressed as

(a) · (1) = (1) · (a)           (7)

Commutative Law for Multiplication

Commutative Law for Multiplication can be expressed as

a · b = b · a         (8)

Distributive Law

Distributive Law can be expressed as

a · (b + c) = a · b + a · c         (9)

Sponsored Links

Related Topics


Basic engineering data. SI-system, unit converters, physical constants, drawing scales and more.

Related Documents

Discrete Data Sets and their Mean, Median and Mode Values

Calculate the arithmetic mean, median and modal values from discrete data sets.

Numbers - Square, Cube, Square Root and Cubic Root Calculator

Calculate square, cube, square root and cubic root. Values tabulated for numbers ranging 1 to 100.

Roman Numerals

Roman numerals are a combinations of seven letters.

Sponsored Links

Search Engineering ToolBox

  • the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!


We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.