Multiplying and dividing negative numbers: word problems

The  exercise appears under the 7th grade (U.S.) Math Mission. This exercise practices word problems with negative numbers.

Types of Problems
There is one type of problem in this exercise:
 * 1. Which of the following equations matches the situation above?: This problem is a story problem and the student is asked to find which expression best matches the problem.

Strategies
Knowledge of multiplying and dividing negative numbers are essential to ensure success in this exercise.
 * 1. Using a model to illustrate the situation can help the student to solve the problem.