Algebra
Introduction: About how many days each year does the temperature in Oklahoma City drop
below zero? Water freezes at 0C. How would you write a temperature below zero? You can
write 1C above zero as +1C and 3C below zero as -3C. At 6:00 p.m. the tem

Percents
Introduction: Percent (%) means per hundred or hundredths. When you read in the
newspaper that 80% of the voters voted, it means that 80 out of 100 eligible citizens
voted. A percent can be considered as a ratio of a number to 100. Remember: 100%

PURPOSE
The purpose of this booklet is to refresh the readers
skills in basic mathematics. There are basic mathematical
processes, which must be followed throughout all areas of
math applications. While this is not a fully comprehensive
mathematics course

Geometry
Introduction: We live in a world of shapes and figures. Objects around us have length,
width and height. They also occupy space. On the job, many times people make
decision about what they know about geometric shapes. Carpenters measure angles to

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ENGINEERING REF