Pre-algebra

The foundations of Pre-Algebra from The Khan Academy.
Instructed by The Khan Academy
  • Lectures 23
  • Video 4 Hours
  • Skill level all level
  • Languages English
  • Includes Lifetime access
    30 day money back guarantee!
    Available on iOS and Android

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Course Description

Videos on pre-algebra. You should be ready for the Algebra playlist if you understand everything here.

What am I going to get from this course?

  • Over 23 lectures and 3.5 hours of content!

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30 day money back guarantee

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Certificate of completion

Curriculum

09:15
Adding and subtracting negative numbers
08:28
Multiplying and dividing negative numbers
09:48
How to add and subtract fractions.
08:25
Multiplying fractions
08:58
Dividing fractions
09:40
Order of Operations
05:20
More Complicated Order of Operations Example
09:45
Basic Exponents
06:25
negative exponents
09:11
fractional exponents
04:38
Intuition on why a^-b = 1/(a^b) (and why a^0 =1)
09:43
Introduction to exponent rules
07:43
2 more exponent rules with an introduction to composite problems
09:43
Using exponent rules to simplify radicals or square roots
09:47
An introduction to logarithms
09:16
Metric unit conversion
09:55
Translating speed units
09:14
Introduction to the first two logarithm properties.
10:04
Second part of the introduction to logarithm properties.
20:48
Introduction to Scientific Notation
12:49
More scientific notation examples
14:13
What a ratio is. Simple ratio problems.
10:44
Unit Conversion Example: Drug Dosage

Instructor Biography

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    • Brian Marcin

    Sal Rules!

    This was a great course, I used it to refresh myself for a college placement test. Sal gives the lectures and examples in a way that doesn't make it boring or monotonous and commits it to memory. I think I will do well, thanks to Sal!

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