Amelia had 28 sea shells. Then, she collected 11 more sea shells. After that, she gave S sea shells to her little sister. Which of the following shows how many sea shells she has currently?

Question

A.
28 - 11 - S
B.
28 + S + 11
C.
28 + S - 11
D.
28 + 11 - S

Answer 1

To determine how many sea shells Amelia currently has, we need to follow the steps outlined in the problem:

1. She starts with 28 sea shells.
2. She collects 11 more sea shells, so now she has \( 28 + 11 = 39 \).
3. She then gives S sea shells to her little sister, so she has \( 39 - S \) left.

Putting all this together, the expression that represents the total number of sea shells Amelia currently has is:

\[ 28 + 11 - S \]

This corresponds to option D:

D. 28 + 11 - S