
Addition and Subtraction of Two Numbers in Scientific Notation:
To add or subtract two numbers in scientific notation, they must both have the same exponent. So you may have to rewrite one of the numbers to have the same exponent as the other.
Example 1:
We can check this by converting the numbers first to the more familiar form.
Example 2: Directions: Solve the following problems. Also write atleast 5 examples of your own. 