Temperature Changes and Number Line Concepts

The video tutorial covers practice problems from Unit 5, Lesson 2, focusing on temperature changes. It explains how to calculate temperature changes using number lines and addition expressions. The tutorial also demonstrates how to compare temperatures using number lines, emphasizing concepts like 'less than' and 'greater than'.

If the temperature starts at -2°C and rises by 15 degrees, what is the new temperature?

• 10°C

• 13°C

• 15°C

• 17°C

At midnight, the temperature is -6°C, and by midday, it is 9°C. By how many degrees did the temperature rise?

• 12 degrees

• 14 degrees

• 13 degrees

• 15 degrees

Which of the following is less than 7°C?

• 8°C

• 9°C

• 7°C

• 6°C

Which number is less than -3 on a number line?

• -2

• 0

• -1

• -4

Which number is between -0.8 and -0.1?

• 0.0

• -0.05

• -0.9

• -0.5

Which of the following is greater than -2?

• -3

• -2

• -4

• -1

If the temperature starts at 80°F and falls by 20 degrees, what is the final temperature?

• 40°F

• 50°F

• 70°F

• 60°F

Starting at -13°F, the temperature rises by 9 degrees. What is the final temperature?

• -2°F

• -3°F

• -5°F

• -4°F

What is the result of adding -5 and -8?

• -14

• -12

• -15

• -13

If the temperature is -5°F and it falls by 8 degrees, what is the new temperature?

• -13°F

• -14°F

• -12°F

• -15°F