Question

question which expression is not equivalent to 40 + 20? answer ○5(8 + 4) ○2(20+10) ○10(4 + 2) ○4(10 + 20)

Explanation:

Step1: Calculate the value of 40 + 20

$40+20 = 60$

Step2: Calculate 5(8 + 4)

First, solve inside the parentheses: $8 + 4=12$. Then multiply: $5\times12 = 60$

Step3: Calculate 2(20 + 10)

First, solve inside the parentheses: $20+10 = 30$. Then multiply: $2\times30=60$

Step4: Calculate 10(4 + 2)

First, solve inside the parentheses: $4 + 2=6$. Then multiply: $10\times6 = 60$

Step5: Calculate 4(10 + 20)

First, solve inside the parentheses: $10+20 = 30$. Then multiply: $4\times30 = 120$

Answer:

$4(10 + 20)$