8.03x10^-8 - 2.56x10^-2

Answer 1

To subtract these two numbers, we need to make sure the exponents are the same.

Let's rewrite them with the same exponent by moving the decimal point:

8.03 x 10^-8 = 0.0000000803
2.56 x 10^-2 = 0.0256

Now we can subtract:

0.0000000803 - 0.0256 = -0.0256 (rounded to four decimal places)