From Ramanujan to calculus cocreator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve problems requiring you to rewrite and simplify an expression with the distributive law of multiplication over addition.
 Hot
 Latest

How To: Remember "greater than" & "less than" symbols

How To: Divide small numbers by big numbers

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Do long division without a calculator

How To: Convert between diameter and radius

How To: Find the area & perimeter of triangles & squares

How To: Calculate the height and volume of a pyramid

How To: Evaluate square roots

How To: Find the opposite and absolute value of a number

How To: Square expressions involving radicals

How To: Get decimal forms of rational numbers

How To: Increase a number by a percentage in basic arithmetic

How To: Calculate percent composition for chemistry

How To: Calculate the area of a parallelogram

How To: Identify characteristics of a sample during a survey

How To: Find the area of a parallelogram using geometry

How To: Find the area of an oblique triangle using formulas

How To: Factor quadratic expressions using trial and error

How To: Convert Fahrenheit to Celsius for chemistry

How To: Calculate probability in "at least one" problems

How To: Remember "greater than" & "less than" symbols

How To: Divide small numbers by big numbers

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Do long division without a calculator

How To: Convert between diameter and radius

How To: Find the area & perimeter of triangles & squares

How To: Calculate the height and volume of a pyramid

How To: Evaluate square roots

How To: Find the opposite and absolute value of a number

How To: Square expressions involving radicals

How To: Get decimal forms of rational numbers

How To: Increase a number by a percentage in basic arithmetic

How To: Calculate percent composition for chemistry

How To: Calculate the area of a parallelogram

How To: Identify characteristics of a sample during a survey

How To: Find the area of a parallelogram using geometry

How To: Find the area of an oblique triangle using formulas

How To: Factor quadratic expressions using trial and error

How To: Convert Fahrenheit to Celsius for chemistry

How To: Calculate probability in "at least one" problems
1 Comment
Distributive Law, Rewrite so its more simple to calculate?
9x25+25=
11x9999=
12x2550=
51x4.9+51x5.1=
I need to learn how?
Share Your Thoughts