Question

(6.4x10^5)-(5.4x10^4)

Answer 1

586000

Explanation:

(6.4×10^5)-(5.4×10^4)

=640000-54000

=586000

Answer 2

Given:

`(6.4*10^5)-(5.4*10^4)`
`\begin{gathered} (6.4*10^5)-(0.54*10^5)=(6.4-0.54)*10^5 \\ =5.86*10^5 \end{gathered}`

Also, we can rewrite the numbers as ordinary number and get the difference;

`\begin{gathered} 640000-54000=586,000 \\ \\ As\text{ scientific notation;} \\ 586,000=5.86*10^5 \end{gathered}`

Therefore;

`(6.4*10^5)-(5.4*10^4)=5.86*10^5`