Consider the following tree diagrams:
Which tree represents the arithmetic expression (2 + 5)$\times$ 4?
A) I
B) II
C) Both I and II
D) Neither I nor II

Question

Consider the following tree diagrams:  
Which tree represents the arithmetic expression (2 + 5)$\times$ 4?
A) I 
B) II 
C) Both I and II 
D) Neither I nor II

Quizplus · Accepted Answer

The expression can be simplified as:
(2 + 5) * 4
= 7 * 4
= 28

Only tree diagram II represents this calculation, where the 7 is added first and then multiplied by 4. Tree diagram I performs the multiplication first, which is not the correct order of operations. Therefore, the answer is B.

Consider the Following Tree Diagrams: Which Tree Represents ×\times×

Consider the Following Tree Diagrams:
Which Tree Represents $\times$