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Browse Middle School Exponents
Stars indicate particularly interesting answers or
good places to begin browsing.
Selected answers to common questions:
Negative exponents.
Scientific notation.
 Why Cubed? [11/27/2001]

Why do we use "cubed" for the volume of a figure?
 Working with Negative Exponents [10/21/1995]

Is multiplying by 10 to the negative 3rd power the same as dividing by 10
to the positive 3rd power?
 Writing 'Square Foot' [05/05/2001]

Is there a symbol for "square foot"?
 Zero and the Commutative Property of Multiplication [04/18/2003]

If we take 0x1, we get 0, and if we take 0x2, we still get 0, for it
is still 0+0+0. But if we do it the other way round, why must it
still be 0, if any number to the power of 0 = 1?
 Zero as an Exponent [6/22/1996]

How do you explain zero as an exponent?
 The Zero Power of Two [12/10/1998]

Why is 2 to the 0 power equal to 1? I don't understand how a number can
be multiplied by itself zero times.
 Zero Significance [10/27/2013]

Confused about the significance of the zeros on either side of a number such as
0.000, a student expresses doubts about manipulating them, and about representing
integers in scientific notation. Doctor Peterson clears the air.
 Zero to a Negative Exponent [05/06/2001]

Is 0^(3) equal to 0, or is it undefined? We can't determine whether to
use the 0^x = 0 rule, or to interpret it as 1/(0^3).
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