Question

In this problem, you will practice added, subtracting, multiplying, and dividing numbers written in scientific notation. For each part, use the following numbers.
3.2 x 10^4, 1.95 x 10^6, 8.03 x 10^-8, 2.56 x 10^-2, 4.82 x 10^12
Choose two of the scientific numbers from the list and add them. Show your
work.

Answer 1

Let's choose 3.2 x 10^4 and 1.95 x 10^6 to add.

To add these numbers, we first need to make sure they have the same exponent. In this case, we can rewrite 3.2 x 10^4 as 0.32 x 10^5, since multiplying by 10^1 is the same as moving the decimal point one place to the right.

Now we can add the numbers:

0.32 x 10^5 + 1.95 x 10^6

To add the numbers, we can add the coefficients:

0.32 + 1.95 = 2.27

And the exponent remains the same:

10^5

So the sum of 3.2 x 10^4 and 1.95 x 10^6 is 2.27 x 10^5.