This is a handy math trick that show you how to turn a multiplication problem into a sum problem. An unusual way to perform a multiplication. You only need to be able to sum, halve and double numbers. It is not efficient, but it is rather intriguing and fun.
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How To:
Use ">" (greater than) and "<" (less than) symbols
How To:
Subtract a mixed number from a proper fraction in basic math
How To:
Multiply & Divide Numbers (Basic Elementary Math)
How To:
Find the area of an oblique triangle using formulas
How To:
Find a number given Its percent
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Find the horizontal asymptotes of rational functions
How To:
Find the slope from a set of points
How To:
Find the area & perimeter of triangles & squares
How To:
Find the slope of a line given 2 points with fractions
How To:
Find extra points for a parabola (quadractic equation)
How To:
Find the Slope Given 2 Ordered Pairs
How To:
Write a sum/difference of logarithms as a logarithm
How To:
Find the perimeter & area of a complex figure
How To:
Determine if you have a function
How To:
Evaluate logarithms using a calculator TI-83
How To:
Divide small numbers by big numbers
How To:
Find and sketch the domain of a multivariable function
How To:
Calculate Faster Than a Calculator
How To:
Find the surface area of a cone without slant height
How To:
Find a missing angle outside of a triangle
How To:
Use ">" (greater than) and "<" (less than) symbols
How To:
Subtract a mixed number from a proper fraction in basic math
How To:
Multiply & Divide Numbers (Basic Elementary Math)
How To:
Find the area of an oblique triangle using formulas
How To:
Find a number given Its percent
How To:
Find the horizontal asymptotes of rational functions
How To:
Find the slope from a set of points
How To:
Find the area & perimeter of triangles & squares
How To:
Find the slope of a line given 2 points with fractions
How To:
Find extra points for a parabola (quadractic equation)
How To:
Write a sum/difference of logarithms as a logarithm
How To:
Find the Slope Given 2 Ordered Pairs
How To:
Determine if you have a function
How To:
Find and sketch the domain of a multivariable function
How To:
Evaluate logarithms using a calculator TI-83
How To:
Divide small numbers by big numbers
How To:
Find the perimeter & area of a complex figure
How To:
Find the surface area of a cone without slant height
How To:
Calculate Faster Than a Calculator
How To:
Simplify a radical expression including variables
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