The purpose of scientific notation is for scientists to write very large, or very small, numbers with ease.
Calculating scientific notation for a positive integer is simple, as it always follows this notation:
a x 10b
Follow the steps below to see how 59,210,650 is written in scientific notation.
To find a, take the number and move a decimal place to the right one position.
Now, to find b, count how many places to the right of the decimal.
New Number: | 5 | . | 9 | 2 | 1 | 0 | 6 | 5 | 0 |
Decimal Count: | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
There are 7 places to the right of the decimal place.
Building upon what we know above, we can now reconstruct the number into scientific notation.
Remember, the notation is: a x 10b
a = 5.921065 (Please notice any zeroes on the end have been removed)
b = 7
Now the whole thing:
5.921065 x 107
Check your work:
107 = 10,000,000 x 5.921065 = 59,210,650
59,210,648 | 59,210,649 | 59,210,651 | 59,210,652 |
5.9210648 x 107 | 5.9210649 x 107 | 5.9210651 x 107 | 5.9210652 x 107 |