Drexel dragonThe Math ForumDonate to the Math Forum

Ask Dr. Math

Middle School Archive

Dr. Math Home || Elementary || Middle School || High School || College || Dr. Math FAQ

This page:
  logarithms checkmark

  Dr. Math

See also the
Dr. Math FAQ:
  order of operations

Internet Library:


About Math

   factoring expressions
   graphing equations

   factoring numbers


     conic sections/
   3D and higher



Number Sense
   factoring numbers
   negative numbers
   prime numbers
   square roots

Word Problems

Browse Middle School Logarithms

Stars indicate particularly interesting answers or good places to begin browsing.

What is Log? [2/26/1995]
What is 4 to the half power, and what is log?

2^x = 8 [05/27/2003]
How can I solve for x in the equation 2^x = 8?

Comparing Very Large Numbers--Which Is Bigger? [12/01/2004]
How do you decide which large number is greater? For instance, how do you know whether 9!^(9!^9) is greater than 10^(10!^10)?

Decimal Exponents [03/19/1999]
Find x^y, where y is a decimal, without using a calculator.

Etymology of 'Logarithm' [03/19/1999]
How does the term 'logarithm' relate to the terms 'exponent' and 'knots', and to nautical logbooks?

John Napier [06/17/1998]
Why was John Napier's discovery of logarithms a great contribution to the field of mathematics?

A Logarithmic Equation [08/06/1998]
How do you solve A*2^(x/y) = B for x using a base 2 logarithm?

Logarithmic Problem [2/22/1995]
Can you help me solve this: log 3^x = 6 + (1/2)log 9^x?

Logarithmic Scales [12/13/1998]
Why do we use logarithmic scales and in what applications do they appear?

Logarithms [11/2/1994]
Can you explain exactly what a logarithm is?

Logarithms before 1965 [02/08/1999]
Could you tell me how logarithms were used before the year 1965?

Logarithms in Bases Other Than 10 [03/28/1998]
What methods are available for solving logarithms in a base other than 10?

Logarithms: Solving for T [01/30/1998]
3.5 = (1.12)^T. We can't remember how to solve for T

'Log' Button [01/29/1998]
We have been using the 'log' button on our calculators to solve problems involving compound interest. What does that button do?

Long Numbers and Logarithms [10/11/2002]
How many terms are there in (12)^(214)? How about (123)^214?

Measurements on a Logarithmic Scale [11/21/1998]
What kinds of measurements are done on a logarithmic scale? What physical properties make a logarithmic scale more appropriate?

Natural Logs [12/20/1997]
I need to understand natural logs. Could you please explain them in the simplest terms possible?

Origin of the Term Logarithm [10/27/1999]
Where does the term logarithm come from?

Sketching Shortcuts [09/30/2012]
An upperclassman quickly sketches a graph packed with logarithms and absolute values; an underclasswoman marvels at his speed — and seeks shortcuts. Doctor Douglas walks through his routine for plotting curves, and along the way exploits symmetries that conserve effort.

Slide Rules [03/13/1999]
Can you help me learn how to use a slide rule?

Solving Logarithms with the Quotient Rule [11/11/1998]
Can you help me solve this logarithm problem for x? I think you need to use the quotient law.

Taking the Logarithm of Zero [08/11/2004]
Why is log(0) undefined?

Why Do We Learn Logarithms? [02/28/2005]
I am currently studying logarithms in school and I was wondering what the point of them is. Will we ever use them when we grow up, and how are they used in real life?

Why Use a Logarithmic Scale to Display Data? [01/26/2008]
I read that log scales help you see data when you are looking at values that range largely. I also read that if the ear did not hear logarithmically we would only hear very loud sounds. Can you help me understand these two statements?

Page:  1

Search the Dr. Math Library:

Search: entire archive just Middle School Logarithms

Find items containing (put spaces between keywords):
Click only once for faster results:

[ Choose "whole words" when searching for a word like age.]

all keywords, in any order at least one, that exact phrase
parts of words whole words

[Privacy Policy] [Terms of Use]

Home || The Math Library || Quick Reference || Search || Help 

© 1994-2015 Drexel University. All rights reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.The Math Forum is a research and educational enterprise of the Drexel University School of Education.