Find the value of \[\left( {64.3 - 32.7} \right)\].

Hint: Here, we will write down the two numbers, one under the other with the decimal points lined up and then add zeros so the numbers have the same length, then subtracting normally.

Complete step-by-step answer:
 We are given that \[\left( {64.3 - 32.7} \right)\].
First, we will write down the two numbers, one under the other with the decimal points lined up and then add zeros so the numbers have the same length, then subtracting normally.
Subtracting the value \[32.7\] from \[64.3\], we get
\[
  {\text{ }}64.3 \\
  \underline { - 32.7{\text{ }}} \\
  \underline {{\text{ }}31.6{\text{ }}} \\
\]
Thus, the required value is \[31.6\].


Note: In solving these types of questions, students must write the number after decimal points lined up, add zeros to the numbers to have the same length to convert decimal into like decimal. After that, the question is simple.