Unit 7, Lesson 10
Finding Differences
Accelerated 6
Practice
Problem 1
- How much warmer is \(82^\circ\) than \(40^\circ\)?
- How much warmer is \(82^\circ\) than \(\text-40^\circ\)?
- How much warmer is \(\text-40^\circ\) than \(82^\circ\)?
Problem 2
- The Emperor penguin keeps its egg warm through the winter by holding it on top of its feet and under a brood pouch. The temperature inside the pouch is \(36 ^\circ \text{C}\). If this is \(78^\circ\) warmer than the outside temperature, what is the outside temperature?
- After the baby penguin hatches, it needs to grow up for about 150 days before it can start swimming. The ice shelf melts away in the summer when the surrounding temperature reaches about \(\text-4^\circ \text{C}\). What is the difference between the summer and winter outside temperatures?
Problem 3
A person travels from Lake Assal, Djibouti, where the elevation is -155 meters, to Elidar, Ethiopia, where the elevation is 418 meters. What is the difference between the person’s final elevation and their starting elevation?
Problem 4
Lin ran 29 meters in 10 seconds. She ran at a constant speed.
- How far did Lin run every second?
- At this rate, how far can she run in 1 minute?
In a video game, a character is healed at a constant rate as long as they are standing in a certain circle. Complete the table.
| time in circle (seconds) |
health gained (points) |
|---|---|
| 4 | 100 |
| 10 | |
| 3 | |
| 1,000 |