how do you write a number in scientific notation?

Answer 1

its really easy!!!

here's an example:

--WRITE 822 IN SCIENTIFIC NOTATION...
--u have to put a decimal in a place of this number so that it would be less than the number "9", so you would put the decimal after the 8 which would make the number 8.22
--then u just have to multiply 8.22 by 10 to the power of something (power is the small number on top of the original number)
--u c how many digits are after the decimal which are "22" so it would be times 100 cuz there are two zeros in a hundred.....get it?
--ur answer will be 8.22 x 10 to the power of 2

HOPE I HELPED!

Answer 2

You dass it like dis!

You got a big fat number like 49,504,493,330 so you can reduce the bastard to 49.5 X 10^9. That's 49 point 5 X 10 to the 9th. How far you round the number is up to you. The rounding I gave would be appropriate for the above number.

Scientific Notation can alzo be used for superduper big fat numbers like a Googol Plex which, if you had a computer printer that printed one million zeroes a second, it would take longer than the known existence of the Universe to print just the NUMBER itself, much less count to that number : 1, 2, 3.....

But it can be reduced to scientific notation rather easily.

A Googol, you should already know (which is teeny weeny) compared to a Googol Plex is a mere 10^100. A Googol Plex is 10 ^ Googol power, or in scientific notation using an array of exponents it looks like this 10^10^100! That's it. That short little bit represents a Googol Plex, a number so huge as to have no scientifc value since 10^131 is the estimated number of elementary particles that could be squeezed into a volume of a sphere the diamater of the known Universe!

You could also use negative exponents for itty bitty teensy tiny little numbers that are scarcely bigger than 0, but not quite as tiny as Newton's hypothetical Infinitessimal numbers that Mathematicians jeered at (Numbers greater than 0, but smaller than the smallest possible decimal number)...

Take George W. Bush's score on a compassion meter 0-100:

He scored 0.00000000000021, whereas I scored the same as Ted Bundy or 2.5, whereas Mother Theresa got a 98!

Bush's score in scientific notation would be 2.1 X 10^-13.
That's 2 point 1 times 10 to the negative 13th power!

We are talking less than a nanobit of compassion here! But more than a femtobit of compassion! What's a femtobit? A Quintillionth part of one bit!

Answer 3

A number written in scientific notation always has the form

a x 10b

where |a| is greater than or equal to 1 and less than 10, and b is an integer.

Full method

example: We start by repeatedly dividing 32353 by 10 until we end up with a number greater than or equal to 1 and less than 10

Remember, to divide a number by 10, just move its decimal point one place to the left.

Here are the successive divisions by 10 :

32353/1 = 32353/100 = 32353 (original number)
32353/10 = 32353/101 = 3235.3 (dec. pt. moved 1 place to the left)
32353/100 = 32353/102 = 323.53 (dec. pt. moved 2 places to the left)
32353/1000 = 32353/103 = 32.353 (dec. pt. moved 3 places to the left)
32353/10000 = 32353/104 = 3.2353 (dec. pt. moved 4 places to the left)

Notice that the decimal point is usually not shown with integers. However, you can imagine a decimal point to be at the end of any integer.

From the last line, we have

32353/104 = 3.2353

Multiplying both sides by 104 gives

32353 = 3.2353 x 104

This is now in the correct form for scientific notation, so the answer is

3.2353 x 104

Quick method

Since 32353 is greater than or equal to 10, move the decimal point to the left until you get a number that is less than 10.

The number you end up with is a ( 3.2353 in this case ) and the number of places you had to move the decimal point is b ( 4 in this case ) :

3.2353 x 10^4

Answer 4

you take the number and make it that there is 1 diget in the ones place. then you take the 0's , count them up, take that number and put it as the power behind 10
ex:
1000
1.0 x 10 (to the3 power)
if there are other numbers than 0, put those behind the decimal, but count them as 0.
ex:
169
1.69 x 10 (to the 2nd power)
if the number is JUST a decimal, move the decimal back 1 space and make the number on the 10 negative
ex:
.999
9.99 x 10(to the -1)
if there is a decimal, BUT there are 0's behind it at first, move the decimal back until it is behind 1 diget. then count back the amount of spaces you moved the decimal, and put a negative behind that number as the number of the power
ex:
.0000987
9.87 x 10(to the power of -5)
hope that helps

Answer 5

move the decimal over until there is just 1 integer 1-9 and then round it to the nearest tenth and put in x10 to the x power. the power depends on what direction and how many u moved it

example: 12754.00
1.2x10^3

Answer 6

3.2 times 10 to the 2 power would be 320.

Answer 7

Put the decimal after the first digit and drop the zeroes.

Answer 8

M e EXP
M mantissa
EXP exponent or power

Answer 9

1.328194791439876E-1

meaning
0.132819479143987

1.2344E3

meaning
1234.4