Order of Operations

P=(parentheses). Complete any math inside parentheses ( ) first. If there is a lot of math inside, use the Order of Operations!

PEMDAS: This step is first.

Addition or subtraction. Add or subtract from left to right across the expression, like reading.

PEMDAS: This step is last.

E=Exponents are second. Multiply the base to itself as many times as the exponent.

PEMDAS: This step is second.

Multiplication or division. Multiply or Divide from left to right across the expression, like reading.

PEMDAS: This step is third

Substitute

Replace. Use the number in place of the variable.

Evaluate

Use numbers to find the answer

Eight subtract one, multiply three.

What are the first and second steps? 10 + 3(8-1)

Four subtract one, multiply five.

What are the first and second steps? 20 - 5(4-1)

Multiply 3 times 2 first.

What is the first step: five plus three times two

Add five plus three first.

What is the first step? (5 + 3) x 2

Fifty four subtract nine.

What is the first step? (54 - 9) ÷ 5

Order of Operations

What math should happen first, second, third or last.

Equation

a math sentence WITH an equal sign

Expression

a math sentence WITHOUT an equal sign.

Operation

addition, subtraction, multiplication, division