How do you write $3,500,000,000$ in scientific notation?

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Answer 1 · 2018-06-25T00:23:37

$3.5 xx 10^9$

Given: $3,500,000,000$

Scientific notation requires a decimal to the right of the left-most non-zero number.

If there is no decimal, place a decimal to the far-right of all of the numbers: $3,500,000,000.$

Now move the decimal to the left until it resides to the right of the left-most non-zero number. Count how many places the decimal has moved:

$3.500000000 =>$ decimal moved $9$ places

Remove the extra zeros unless this is a measurement: $" "3.5 xx 10^9$

How do you write 3,500,000,0003,500,000,000 in scientific notation?