Transcript Algebraic expression

Algebraic
Expressions
Variable – is a letter
or symbol that
represents an
unknown quantity.
X yZ n t
Algebraic expressioncontaining at least one
variable and does not
contain an equal sign
EX:
T + 3
When writing an
algebraic
expression,
remember these
items…
1. Decide on a
variable to represent
the unknown
=b
P=
2. Decide what
operation
represents the
situation
3. If possible, check
your expression by
plugging in values to
see if the answer
makes sense.
If given an expression
and the value of the
variable, simply plug
the value in and
solve.
m+8
m=2
2 + 8 = 10
Words That Lead to Subtraction
Decreased – Less – Difference
Minus – How many more
Words That Lead to Division
Divided by – Quotient
Words That Lead to Addition
Sum – More than – Increased
Plus – Altogether
Words That Lead to Multiplication
Times – Product – Of
Practice Problems
1. Five plus y
2. 6 times q
3. 2 less than x
Practice Problems
4. A cake will
serve 12 people.
Write an expression for
how many people will C
cakes serve?
Practice Problems
5.The drama club sold 60
more tickets on Saturday
as on Friday. Write an
expression for the number
of tickets sold on
Saturday.