Question

using the order of operations
use the drop - down menus to answer the questions about the expression 6 + 5 - 2 × 4.
which operation should be performed first?
which operation should be performed second?
what is the value of this expression?

Explanation:

Step1: Identify first operation (PEMDAS)

In the expression \(6 + 5 - 2 \times 4\), multiplication (\(\times\)) has higher precedence than addition (\(+\)) and subtraction (\(-\)). So first operation: \(2 \times 4 = 8\).

Step2: Identify second operation

After multiplication, we perform addition or subtraction from left to right. Next is \(6 + 5 = 11\).

Step3: Calculate final value

Now substitute back: \(11 - 8 = 3\). Wait, correction: Wait, order is left to right after multiplication. Wait, original expression: \(6 + 5 - 2 \times 4\). First, \(2 \times 4 = 8\). Then, left to right: \(6 + 5 = 11\), then \(11 - 8 = 3\)? Wait no, wait: \(6 + 5 - 8 = (6 + 5) - 8 = 11 - 8 = 3\). Wait, but let's re - check. Wait, PEMDAS: Parentheses, Exponents, Multiplication and Division (left - right), Addition and Subtraction (left - right). So for \(6 + 5 - 2\times4\):

1. Multiplication: \(2\times4 = 8\)
2. Then addition: \(6 + 5 = 11\)
3. Then subtraction: \(11-8 = 3\)

Wait, but maybe the first question is "Which operation should be performed first?" Answer: Multiplication (\(2\times4\)). Second operation: Addition (\(6 + 5\)). Value of expression: \(6 + 5-2\times4=6 + 5 - 8 = 3\).

Answer:

First operation: Multiplication (\(2\times4\)); Second operation: Addition (\(6 + 5\)); Value: \(3\)