PEMDAS and SADMET Operations

The video tutorial explains how to solve mathematical problems using two methods: PEMDAS and SADMET. PEMDAS is used for expressions without equal signs, focusing on the order of operations: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction. SADMET is used for equations with equal signs, applying reverse operations: Subtraction and Addition, Division and Multiplication, Exponents, and Parentheses. The tutorial provides examples for both methods, demonstrating how to simplify expressions and solve equations effectively.

What is the primary difference between PEMDAS and SADMET?

• PEMDAS is used for expressions, SADMET for equations.

• PEMDAS is used for equations, SADMET for expressions.

• PEMDAS and SADMET are used interchangeably.

• PEMDAS is used for addition, SADMET for subtraction.

Which of the following is NOT a characteristic of an expression where PEMDAS is used?

• It contains an equal sign.

• It does not contain an inequality sign.

• It does not contain a not equal sign.

• It is simplified or evaluated.

In the example using PEMDAS, what is the result of 6 times 4?

• 20

• 18

• 30

• 24

What is the final result of the expression solved using PEMDAS in the example?

• 130

• 125

• 121

• 120

When using SADMET, which operation should you start with?

• Multiplication

• Parentheses

• Division

• Subtraction or Addition

In the SADMET example, what is the value of x after solving the equation?

• 6

• 5

• 4

• 3

What operation is performed after subtracting 3 from both sides in the SADMET example?

• Subtraction

• Addition

• Multiplication

• Division

What is the purpose of plugging the value of x back into the expression in the SADMET example?

• To check if the solution is correct

• To find a new solution

• To simplify the expression

• To change the equation

Which method is used to verify the solution in the SADMET example?

• Both PEMDAS and SADMET

• SADMET

• Neither PEMDAS nor SADMET

• PEMDAS

What is the final result of evaluating the expression with x as 4 in the verification step?

• 12

• 14

• 15

• 16