159k views
2 votes
I need an explanation on how I can subtract Scientific Notation

I need an explanation on how I can subtract Scientific Notation-example-1
User Josh Kidd
by
8.2k points

1 Answer

2 votes

To perform the required calculation, we need to transform the first term into a scientific notation, or the second one in normal number, then we perform the calculation.

Transforming the first one into scientific notation, we have the following:


0.00045=4.5*10^(-4)=45*10^(-5)

To solve the present problem, we will use the same order for the number 10. This will allow us to make the following:


\begin{gathered} 45*10^(-5)-2.5*10^(-5)=\left(45-2.5\right?*10^(-5) \\ =42.5*10^(-5) \end{gathered}

now, we need to transform it in such a way that the number is between 1 and 10, as follows:


42.5*10^(-5)=4.25*10^(-4)

From the solution developed above, we are able to conclude that the answer to the proposed problem is:


4.25*10^(-4)

User Gustavo Carvalho
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories