Grade 6 | Unit 7 | Lesson 5: Using Negative Numbers to Make Sense of Contexts | Practice Problems

Write a positive or negative number to represent each change in the high temperature.

• Tuesday’s high temperature was 4 degrees less than Monday’s high temperature.

• Wednesday’s high temperature was 3.5 degrees less than Tuesday’s high temperature.

• Thursday’s high temperature was 6.5 degrees more than Wednesday’s high temperature.

• Friday’s high temperature was 2 degrees less than Thursday’s high temperature.

Decide which of the following quantities can be represented by a positive number and which can be represented by a negative number. Give an example of a quantity with the opposite sign in the same situation.

Make up a situation where a quantity is changing. Explain what it means to have a negative change. Explain what it means to have a positive change. Give an example of each.

On the number line, label the points that are 4 units away from 0. If you fold the number line so that a vertical crease goes through 0, the points you label would match up. Explain why this happens.

Evaluate each expression.