\( \begin{array}{l}\text { Write the number in standard form. } \\ 2.7 \times 10^{-4}=\square\end{array} \)

To convert \( 2.7 \times 10^{-4} \) to standard form, you move the decimal point in 2.7 four places to the left because of the negative exponent. So, you start with 2.7, go past the 2, 0, and add zeros until you have four decimal places total. This results in \( 0.00027 \). Thus, \( 2.7 \times 10^{-4} = 0.00027 \). To help remember, think of the negative exponent as an indicator that the number is getting smaller – it’s like diving into a pool, the deeper you go, the further down (smaller) you are!