Please, remember that Computations means simple mathematics.
In some conversations on Part B, you will have to add, subtract, multiply, or
divide in order to answer the problems correctly. In other conversations, you
will be given all of the information, and you will NOT need to add, etc.
When you hear a conversation between two speakers, you must decide whether it is
necessary to compute the answer to the question asked by the third voice, If you
need to make a computation, you must be accurate.