This lessons presents approaches for determining whether a number is divisible by another number.
- Author:
- Khan, Salman
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This lesson discusses prime and composite numbers.
- Author:
- Khan, Salman
This lesson shows how to write a percent as a decimal and a fraction.
- Author:
- Khan, Salman
This lesson reviews how to write a fraction as a decimal and a percentage.
- Author:
- Khan, Salman
This lesson teaches how to 'round' decimals to the nearest tenth.
- Author:
- Khan, Salman
This lesson reviews rounding of whole numbers.
- Author:
- Khan, Salman
This lesson continues the review of rounding of whole numbers.
- Author:
- Khan, Salman
This lesson completes the review of rounding of whole numbers.
- Author:
- Khan, Salman
This pre-algebra lesson introduces Scientific Notation.
- Author:
- Khan, Salman
The Pre-algebra lesson provides additional examples of scientific notation.
- Author:
- Khan, Salman
This pre-algebra lesson introduces significant figures.
- Author:
- Khan, Salman
This pre-algebra lesson shows how to use exponent rules to simplify radicals or square roots.
- Author:
- Khan, Salman
This lesson uses prime factorization to calculate rate and ratio.
- Author:
- Khan, Salman
This lesson demonstrates the solution to a word problem with different units of volume by converting the units to a common unit.
- Author:
- Khan, Salman
This lesson shows how to interpret the language in percent problems in order to set up the problem correctly.
- Author:
- Khan, Salman
This lesson continues a demonstration of how to interpret the language in percent problems in order to set up the problem correctly.
- Author:
- Khan, Salman
This pre-algebra lesson translates speed units.
- Author:
- Khan, Salman
This 6-minute video lesson explains stem and leaf plots.
- Author:
- Khan, Salman
This lesson shows how to subtract decimals and stresses the importance of lining up the decimals and place values in the numbers.
- Author:
- Khan, Salman
This 9-minute video looks at subtracting decimals (this is an old video).
- Author:
- Khan, Salman