Question

question which expression is not equivalent to 100 + 20? answer 2(50 + 10) 10(10 + 2) 5(20 + 4) 10(1 + 10)

Explanation:

Step1: Calculate the value of 100 + 20

$100+20 = 120$

Step2: Calculate the value of 2(50)+10

First, calculate $2\times50 = 100$, then $100 + 10=110$.

Step3: Calculate the value of 10(10)+2

First, calculate $10\times10 = 100$, then $100+2 = 102$.

Step4: Calculate the value of 10(1)+10

First, calculate $10\times1=10$, then $10 + 10 = 20$.

Step5: Calculate the value of 5(20)+4

First, calculate $5\times20 = 100$, then $100+4 = 104$.

Answer:

$100 + 20$ is not equivalent to $10(1)+10$ since $100 + 20=120$ and $10(1)+10 = 20$. So the answer is $10(1)+10$.