This lesson shows how percents represent parts of a whole.
- Author:
- Khan, Salman
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This arithmetic lesson reviews basic subtraction and presents several ways to visualize a subtraction problem.
- Author:
- Khan, Salman
This video looks at ck12 Distributive Property example
- Author:
- Sal Khan
This lesson shows how to shift decimals in the divisor and divident in order to be able to divide fractions.
- Author:
- Khan, Salman
This lesson focuses on a fast way to divide a decimal by a power of ten, just by moving the decimal point.
- Author:
- Khan, Salman
This lesson discusses how dividing fractions is the same as multiplying a fraction by the reciprocal of the divisor.
- Author:
- Khan, Salman
This 4-minute video lesson looks at an example of dividing Fractions.
- Author:
- Khan, Salman
This lesson solves word problems that require dividing with fractions.
- Author:
- Khan, Salman
This lesson shows how it is necessary to convert mixed numbers into proper fractions in order to divide them by multiplying by the reciprocal of the divisor.
- Author:
- Khan, Salman
This lesson builds on the previous lessons and demonstrates dividing mixed numbers and fractions and writing the answer as a mixed number.
- Author:
- Khan, Salman
This video looks at Basics of dividing with negative numbers
- Author:
- Sal Khan
This lesson shows how to divide a decimal by a power of ten.
- Author:
- Khan, Salman
This video looks at example of Sal working on KA Divisibility Module: http://www.khanacademy.org/math/arithmetic/factors-multiples/e/divisibility_intuition
- Author:
- Sal Khan
This video looks at worked example of basic divisibility tests
- Author:
- Sal Khan
This arithmetic lesson shows how to divide into larger numbers, using the products learned in multiplication tables.
- Author:
- Khan, Salman
This lesson demonstrates how to create equivalent fractions.
- Author:
- Khan, Salman
This 5-minute video lesson gives an exmple of equivalent fractions.
- Author:
- Khan, Salman
This lesson solves a problem that requires estimation of decimals before adding them.
- Author:
- Khan, Salman
This video looks at Subtracting whole numbers
- Author:
- Sal Khan
This pre-algebra lesson provides an introduction to exponent rules.
- Author:
- Khan, Salman