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Order of Operations
Order of Operations
You must follow the order of operations to solve expressions correctly. Make sure to show your work (Pizza Slices)
Order of Operations with Exponents
Order of Operations with Exponents
What is an Exponent??
What is an Exponent??
Parts of an Algebraic Expression
Parts of an Algebraic Expression
Combining Like Terms
Combining Like Terms
To simplify an expression, combine the terms that are on the "same team"--they have the same variable and exponent
Evaluating Expressions
Evaluating Expressions
When you are given a value for the variable, you can substitute and solve the expression using the order of operations.
Translating Expressions
Translating Expressions
Look for key words
"a number" means there is a variable
Look for numbers
Solutions to Equations
Solutions to Equations
A solution is a number or set of numbers that makes the equation true
For an equation to be 'true' the left side must equal the right side of the equal sign.
Solving Equations
Solving Equations
To solve an equation is to find the value/number that makes the equation 'true'. You want to find the number that the variable(letter) represents.
To solve an equation, 'undo' what is being done to the variable. Example: x + 4.5 = 25.67
To solve, subtract 4.5 from BOTH sides.
X = 21.17
**Always remember to check your work
21.17 + 4.5 = 25.67 (both sides are equal :) )
Extra Practice
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