Question

question
which expression is not equivalent to 100 + 20?
answer
2(50 + 10)
5(20 + 4)
5(95 + 4)
10(10 + 2)

Explanation:

Step1: Calculate \(100 + 20\)

\(100 + 20 = 120\)

Step2: Evaluate \(2(50 + 10)\)

First, calculate inside the parentheses: \(50 + 10 = 60\)
Then multiply: \(2\times60 = 120\)

Step3: Evaluate \(5(20 + 4)\)

First, calculate inside the parentheses: \(20 + 4 = 24\)
Then multiply: \(5\times24 = 120\)

Step4: Evaluate \(10(10 + 2)\)

First, calculate inside the parentheses: \(10 + 2 = 12\)
Then multiply: \(10\times12 = 120\)

Step5: Evaluate \(5(95 + 4)\)

First, calculate inside the parentheses: \(95 + 4 = 99\)
Then multiply: \(5\times99 = 495\)

Answer:

\(5(95 + 4)\) (the option with the expression \(5(95 + 4)\))