Question

(from unit 4, lesson 3.)

1. select the correct drawing and expression that represent the situation.

16 students are organized into groups of 2. how many groups are there?
a. image of four boxes each with four circles
d. (16 div 2)

Explanation:

Step1: Analyze the problem

We have 16 students and we want to group them into groups of 2. To find the number of groups, we use division because we are splitting a total number into equal - sized groups. The formula for the number of groups $n$ when we have a total number $T$ and group size $g$ is $n=\frac{T}{g}$. Here, $T = 16$ and $g = 2$, so the expression should be $16\div2$.

Step2: Analyze option A

Looking at option A, each box has 4 circles. But we need groups of 2, so option A does not represent groups of 2.

Step3: Analyze option D

The expression $16\div2$ is the correct mathematical expression to find the number of groups when we divide 16 students into groups of 2.

Answer:

D. $16\div2$