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 114,070,380 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: | 1 | . | 1 | 4 | 0 | 7 | 0 | 3 | 8 | 0 |
Decimal Count: | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
There are 8 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 = 1.1407038 (Please notice any zeroes on the end have been removed)
b = 8
Now the whole thing:
1.1407038 x 108
Check your work:
108 = 100,000,000 x 1.1407038 = 114,070,380
114,070,378 | 114,070,379 | 114,070,381 | 114,070,382 |
1.14070378 x 108 | 1.14070379 x 108 | 1.14070381 x 108 | 1.14070382 x 108 |