Order of Operations in Mathematics

What does "Please Excuse My Dear Aunt Sally" help you remember?

• The steps to solve an algebraic equation

• The order of operations in mathematics

• The formula for calculating the area of a circle

• The components of a scientific experiment

What does each letter in PEMDAS stand for?

• Exponents

• D

• Add/Subtract

• P

• Multiply

• M

• Divide

• A/S

• Parentheses

• E

Which of the following is evaluated first according to the PEMDAS rules?

• Addition

• Division

• Exponents

• Parentheses

According to PEMDAS, which operation would you perform after solving any parentheses and exponents?

• Addition and Subtraction

• Multiplication and Division

• Subtraction

• Addition

When applying the PEMDAS rules, how should multiplication and division be carried out?

• From right to left

• Simultaneously

• From left to right

• Division before multiplication

In the equation "90 x 5 + 8", what do you do FIRST?

• 90 x 5

• 5+8

• 90 x 8

• 90 + 8

In the equation "(11 + 6) x 13 + 6", what do you do FIRST?

• Nothing

• Multiply

• Add

• Parentheses

What do we call an unknown number in a math problem?

• I don't know

• Variable

• Letter

When solving an equation with a variable, what is the first step?

• Plug in the number given for the variable

• Solve the problem to find the unknown

• Guess

True or False: when you see a number attached to a variable ( ex: "3n"), it means you DIVIDE.

• True

• False