Scientific Notation
A positive number is written in scientific notation
if it is written in the form:
where 1 <
a
< 10 and
r
is an integer power of 10.
Writing a Number in Scientific Notation
Step 1:
Move the decimal point so that you have a number that is
between 1 and 10.
In other words, you will put your decimal after the first non zero number.
Step 2:
Count the number of decimal places moved in Step 1 .
If the decimal point was moved to the left, the count is positive.
If the decimal point is moved to the right, the count is negative.
Step 3:
Write as a product of the number (found in Step 1) and 10
raised to the power of the count (found in Step 2).
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Example 1:
Write the number in scientific notation: 734,000,000,000.
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Step 1:
Move the decimal point so that you have a number that is
between 1 and 10.
*Decimal is at the end of the number
*Move decimal to create a number between 1 and 10
Step 2:
Count the number of decimal places moved in Step 1 .
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 Spring '11
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 Algebra, Scientific Notation, Decimal

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