Lesson: Evaluating Numerical Expressions Involving Negative Numbers

In this lesson, we will learn how to evaluate numerical expressions involving negative numbers.

Sample Question Videos

01:51

Worksheet: 9 Questions • 1 Video

Q1:

A teacher asked his students to find an expression that can be used to find the difference between the height of the Empire State Building, 443.2 m, and the height of the Eiffel Tower, 324 m. The first student said the expression is , while the second said that it is . Who was correct?

Q2:

The table shows the temperatures for one day in January in a city.

Time	12:00 am	1:00 am	2:00 am	3:00 am	4:00 am	5:00 am	6:00 am	7:00 am	8:00 am	9:00 am	10:00 am	11:00 am
Temperature (F)										0	3	5

Time	12:00 pm	1:00 pm	2:00 pm	3:00 pm	4:00 pm	5:00 pm	6:00 pm	7:00 pm	8:00 pm	9:00 pm	10:00 pm	11:00 pm
Temperature (F)	7	10	12	15	14	13	11	5	3

Find the change in temperature between 8:00 am and 6:00 pm.

Write an integer to describe the change in temperature between 3:00 pm and 9:00 pm.

Interpret this integer.

Q3:

The temperature inside a house is , and the temperature outside is lower. What is the temperature outside the house?

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