Explanation:
(6.02 x 10^6) + (5.3 x 10^5)
To add these two numbers, you'll want to adjust one of them so that the exponents match. Let's adjust the second number (5.3 x 10^5) to have the same exponent as the first (10^6):
(6.02 x 10^6) + (0.53 x 10^6)
Now that the exponents are the same, you can add the numbers:
(6.02 + 0.53) x 10^6
6.55 x 10^6
So, the result of (6.02 x 10^6) + (5.3 x 10^5) is 6.55 x 10^6.