# Change of Base

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Taught by MrA
• Currently 4.0/5 Stars.
3259 views | 2 ratings
Meets NCTM Standards:
Errors in this video:

There is an error in the first example problem. 3^5 is calculated incorrectly (should be 243 instead of 273).

Lesson Description:

An explanation of how bases (ie: Base 10, Base 2 / Binary) work, how to convert between bases, and how to interpret numbers written in different bases.

Additional Resources:
Questions answered by this video:
• What is a base?
• How do you change between bases?
• How do you write a number in base 2?
• How do you read a number in base 2?
• How do you write a number in binary?
• How do you read a number in binary?
• #### Staff Review

• Currently 4.0/5 Stars.
A bottom-up approach to understanding bases other than base 10. It not only gives you a comprehensive understanding of what it means to have different bases, it also shows you practical examples and steps through how to convert numbers to different bases. A good lesson.
• #### terrapin52

• Currently 4.0/5 Stars.
I like the explanation, but there was a math error in the first exercise explanation. 3 raised to the 5th power is not 273. It is 243. Oops! Nevertheless, I now understand the bases whereas I did not before watching this video, so thanks.