2. The Language of Math Algebra is a mathematical language that
uses symbolsand letters.26 + x = 84 Symbols represent the operation
and numbers.+ - = 1 2 3 Letters represent unknown quantities.a +
bp/qx
3. The Language of Math When symbols and numbers are combined
into a mathematicalphrase, the phrase is an numerical expression.14
+ 32 = 46 When letters (known as variables) are combined with
symbolsthe mathematical phrase is an algebraic expression.x + 32 =
46 In algebra, variables/letters are used for unknown quantities.
In arithmetic, an empty box or other shape was used to
representunknown quantities.4 + 3 =
4. Understanding A mathematical quantity is anything that can
bemeasured or counted. Algebra uses symbols to represent quantities
that areunknown or may vary. You can represent mathematical phrases
and real-worldrelationships using symbols and operations.
5. Lets Practice (Write only the expression)3. The quotient of
207 and a number n?Quotient means?Divide.The unknown variable is
represented by the letter?n.The algebraic expression is?207 n4. The
difference of a number x and ?Difference means?Subtract.The unknown
variable is represented by the letter?x.The algebraic expression
is?x .1. The total number of fish if you hadeight and brought nine
more?How many fish do you have?8.How many more fish did you
buy?9.Together you have?8 + 92. The total length of songs on a CD
ifeach of nine songs is three minuteslong?How many songs are on the
CD?9.Each song is how long?3 minutes.The total length of the CD
is?9 x 3
6. Check Your Understanding Translate the following: Do Not
SolveWrite the phrases into anumerical or algebraic expression.1.
The total amount of money if you have nine dollars and 12
dollars?2. The cost of six electronic hand-held games if each cost
eight dollars?3. The sum of a number m and 8?4. y minus 12?5. The
difference of 15 and 10?6. A number t divided by 82?7. The number
of students I each group if fifteen students are divided intofive
equal group?