Order of Operations in Mathematics

The video tutorial introduces the concept of order of operations, emphasizing its importance in solving mathematical problems. It demonstrates both incorrect and correct methods of solving a problem using the order of operations. The tutorial explains the PEMDAS/BEDMAS protocol, which provides a structured approach to solving multi-step problems. Two example problems are solved step-by-step, illustrating the application of these rules.

Why is it important to follow the order of operations in mathematics?

• To avoid using calculators

• To confuse students

• To ensure consistent results

• To make math more complicated

What is the first step in solving the expression 2 + 2 × 5 according to the order of operations?

• Subtract 5 from 2

• Divide 5 by 2

• Multiply 2 × 5

• Add 2 + 2

What does the acronym PEMDAS stand for?

• Parentheses, Exponents, Addition, Subtraction, Multiplication, Division

• Parentheses, Exponents, Division, Multiplication, Addition, Subtraction

• Parentheses, Exponents, Multiplication, Division, Subtraction, Addition

• Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

In the expression 4 + 8 × 2², which operation should be performed first?

• Addition

• Exponentiation

• Subtraction

• Multiplication

What is the result of the expression 4 + 8 × 2²?

• 20

• 36

• 16

• 32

In the expression 3 - 1³ + 8 ÷ 2, what should be calculated first?

• 1³

• 3 - 1

• 3 + 8

• 8 ÷ 2

What is the final result of the expression 3 - 1³ + 8 ÷ 2?

• 14

• 16

• 10

• 12