Order of Operations MEDIUM Example 2 - ALGEBRA I

The video tutorial explains the order of operations using the mnemonic 'Please Excuse My Dear Aunt Sally' (PEMDAS). It covers the use of brackets and parentheses, demonstrating how to solve expressions step-by-step. The tutorial emphasizes the importance of following the correct order of operations to arrive at the correct solution, using two example problems to illustrate the process.

What is the purpose of using brackets or parentheses in mathematical expressions?

• To make the expression look more complex

• To add extra numbers to the expression

• To indicate the order in which operations should be performed

• To separate numbers from operations

In the expression 7 * 2 - 4, which operation should be performed first according to the order of operations?

• Division

• Subtraction

• Addition

• Multiplication

After solving the expression 7 * 2 - 4, what is the result inside the brackets?

• 14

• 10

• 8

• 12

When solving 9 + 8 * 4, which operation should be completed first?

• Addition

• Subtraction

• Division

• Multiplication

What is the final result of the entire problem after applying the order of operations?

• 51

• 41

• 61

• 31