Evaluating Expressions and Operations

The video tutorial explains how to evaluate a mathematical expression using the order of operations. It begins by simplifying the innermost parentheses, then evaluates exponents, and finally performs addition and subtraction. The expression is simplified step-by-step, resulting in a final value of negative two. The tutorial concludes with a verification of the result using a calculator.

What is the first step in evaluating an expression according to the order of operations?

• Simplify the outermost brackets

• Add all numbers first

• Evaluate exponents first

• Simplify within the innermost parentheses

How do you simplify the expression 2 - 8?

• By adding 8

• By converting it to 2 + (-8)

• By multiplying by 8

• By dividing by 2

What is the result of 3 squared?

• 6

• 3

• 9

• 12

What is the result of 2 squared?

• 8

• 6

• 4

• 2

What is the result of negative six squared?

• 12

• 36

• -12

• -36

What is the result of 10 minus 36?

• -46

• 26

• -26

• 46

What is the sum of 9 and 4?

• 12

• 15

• 14

• 13

What is the result of dividing -26 by 13?

• 1

• -1

• 2

• -2

What is the final simplified result of the expression?

• 1

• 2

• 0

• -2

How can you verify the result of an expression using a calculator?

• By entering the expression with brackets

• By entering the expression in reverse

• By entering the expression without any symbols

• By entering the expression with parentheses