Question

what is the second step when evaluating the expression 18 ÷ (24 − 18) + 3 − 1?
○ 18 ÷ 6
○ 24 - 18
○ -18 + 3
○ 3 − 1

Explanation:

Step1: Recall PEMDAS rule

PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) is used for order of operations. First, solve the operation inside the parentheses. For the expression \(18\div(24 - 18)+3 - 1\), the first step is to calculate \(24-18 = 6\).

Step2: Determine the second step

After solving the parentheses, the next step in PEMDAS is to handle division (since there are no exponents, multiplication/division comes next). So the second step is to perform \(18\div6\) (because after \(24 - 18=6\), the expression becomes \(18\div6+3 - 1\), and division is done before addition/subtraction).

Answer:

18 ÷ 6