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Browse Elementary Square Roots
Stars indicate particularly interesting answers or
good places to begin browsing.
Selected answers to common questions:
Table of Squares & Square Roots, 1100.
 Multiplying by a Power of Ten [10/31/2001]

Give the power of ten that the decimal must be multiplied by to eliminate
the decimal point in the numbers: 3.825; 6.91; 19.207.
 Scientific Notation [08/19/1997]

Write these numbers in scientific notation: 55000, 0.55, x...
 Scientific Notation: Exponents [8/29/1996]

What do you call 0.000000000000000000000002?
 Square roots [11/27/1994]

What are square roots and how do they work?
 What is an exponent? [8/8/1996]

Can you explain what an exponent is?
 Calculators and e+ [09/27/1998]

What does the "e+" mean on a calculator?
 Evaluating Large Numbers [06/11/1998]

How do you evaluate 2^71 * 3? Can you use logarithms?
 Explaining Scientific Notation [10/21/2002]

Could you try to explain scientific notation to me?
 The Meaning of Powers, such as Squares and Cubes [3/14/1996]

What does the power mean? Like 5 to the power of 2?
 Multiplying Numbers Written in Scientific Notation [06/27/2004]

How do I multiply two numbers that are written in scientific notation?
 Numbers with Large Exponents [08/22/2001]

How many zeros end the number 2^300 * 5^600 * 4^400?
 Operations in Scientific Notation [08/30/2001]

How do you add, multiply, and divide in scientific notation?
 Ordering the Operations [11/10/1998]

Why does the order of operations have to be in that order? Who set that
specific order of operations?
 Perfect Square: Definition [10/24/1999]

What is a perfect square?
 Power of 120 [06/12/2001]

Is there a quick way to work out 1.05 to the power of 120?
 Scientific Notation [09/16/1997]

I don't understand how you get the answer: 5x10 to the 3rd power = 5,000;
5x10 to the 3rd power = 5,000.
 Scientific Notation and Engineering Notation [10/10/2001]

Convert 0.000 000 000 000 000 000 000 3 to: a) scientific notation; b)
engineering notation.
 Significant Digits in Measurement [08/13/2001]

I understand that there are rules to determine the significant digits in
measurement, but aren't all digits significant, especially zeros for
place value?
 Simplifying Square Roots [9/4/1995]

I am in grade 2. What is the square root of 812 ?
 Square Root [4/4/1996]

What does square root mean?
 The Term Power [10/23/2001]

One of my students asked how we came to use the term power to express the
number of times we multiply a number by itself.
 Using Scientific Notation [11/01/1997]

I know it's used to multiply large numbers to get a correct answer, but I
don't understand how to do it.
 Value of 9^(9^9)? [10/21/2002]

What is the value of 9^(9^9)?
 Who Invented the Square Root? [12/11/1996]

I've only seen long, stringy roots!
 Writing 'Square Foot' [05/05/2001]

Is there a symbol for "square foot"?
 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.
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