Lesson: Order of Operations: Negative Numbers Mathematics
In this lesson, we will learn how to evaluate numerical expressions involving negative numbers using the order of operations.
The weather forecast was announced to be in Cairo and in London. Calculate the difference in temperatures between the two cities.
Fill in the blank: .
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?