Question

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Scientific Notation Portfolio
Use this worksheet to record your answers to the Scientific Notation portfolio activities. There are 3 parts, so make sure you scroll down to see all of them. When you are finished, save your worksheet with your answers and submit it for a portfolio grade. By showing your work, we are asking you to write the equation and then solve and write the answer.

Part 1: Use the following numbers.

3.2 ✕ 10^4 1.95 ✕ 10^6 8.03 ✕ 10^-8 2.56 ✕ 10^-2 4.82 ✕ 10^12

Choose two of the scientific numbers from the list and add them. Show your work.

Answer 1

u can only pick two

Answer 2

Let's choose the numbers 3.2 * 10^4 and 1.95 * 10^6.

To add these two numbers, we need to make sure they have the same exponent. We can do this by adjusting one of the numbers.

3.2 * 10^4 + 1.95 * 10^6

First, let's adjust the first number to have the same exponent as the second number.

3.2 * 10^4 = 3.2 * 10^4 * 10^2 = 3.2 * 10^6

Now we have:

3.2 * 10^6 + 1.95 * 10^6

Since both numbers now have the same exponent, we can simply add their coefficients:

3.2 + 1.95 = 5.15

Therefore, the sum of 3.2 * 10^4 and 1.95 * 10^6 is 5.15 * 10^6.

Answer 3

My apologies for the misunderstanding. Let's choose the numbers 3.2 * 10^4 and 8.03 * 10^-8.

To add these two numbers, we need to make sure they have the same exponent. We can do this by adjusting one of the numbers.

3.2 * 10^4 + 8.03 * 10^-8

Let's adjust the second number to have the same exponent as the first number.

8.03 * 10^-8 = 8.03 * 10^-8 * 10^12 = 8.03 * 10^4

Now we have:

3.2 * 10^4 + 8.03 * 10^4

Since both numbers now have the same exponent, we can simply add their coefficients:

3.2 + 8.03 = 11.23

Therefore, the sum of 3.2 * 10^4 and 8.03 * 10^-8 is 11.23 * 10^4.