The language of mathematics is unique and complex. One feature of the mathematical register is the use of symbols and abbreviations. Whilst it may be possible for a student to think mathematically in the absence of symbols, the written communication of mathematical ideas cannot be achieved concisely without the use of mathematical symbols. Further, it is possible that the fear and dislike of algebra can be attributed to the failure to understand fully the symbols inherent in this area of mathematics. This paper examines some of the complexities of the symbolic aspects of mathematical language, where possible using the 2010 National Assessment Program: Literacy and Numeracy (NAPLAN) (ACARA, 2010) numeracy test items as examples. The paper begins by clarifying the meaning of mathematical symbols and abbreviations. (Contains 1 table.)