Today we are doing many more \textit{Consumer Arithmetic} problems. The reason for this is a) to have a little bit of a different lesson today; something a little less intense. b) To give you a chance to master your calculator (more on this as we continue). And c) to actually give you practise with some of the otherwise confusing consumer arithmetic worded problems.

Once again, here is the box of nomenclature that you should be becoming familiar with:

\fbox{%
\makebox[\textwidth]{
\randomword{appreciation}%
\randomword{GST}%
\randomword{simple interest}%
\randomword{compound interest}%
\randomword{commissions}%
\randomword{inflation}%
\randomword{depreciation}%
\randomword{discounts}%
}
}

If any of these words feel uncomfortable to you, this lesson is the time to ask your tutor what they mean!
