Chapter 9- Algebra using multiplication and
division facts
Expression- part of a number sentence that has numbers and operation
signs but does not have an equal sign
7+4 x+4
Variable- a letter that can stand for any number
Example x+8=13
x=5
Equation- a number sentence that shows two amounts are equal.
7=3+4 12=12 6+7=10+3
Order of operations- Rules for performing operations in expressions
that have more than one operation
Please
Excuse
My
Dear
Aunt
sally
Parenthesis
(
)
Exponents
Multiplication
X
Division
÷
Add
subtract
+
-