Let's go through each part of the problem from the image:

a. Draw a number line from 0 to 100 with only zero and one other number marked and labeled.

This part is asking for a number line between 0 and 100. Only the endpoints (0 and 100) need to be marked and labeled.

b. On the Celsius scale, what temperature is five degrees less than the freezing point of water?

The freezing point of water on the Celsius scale is 0°C. Five degrees less than this would be:

$0 - 5 = -5°C$

c. Points A and B on this number line indicate two numbers. Write the two numbers, using a comparison symbol to show which is greater and which is less.

From the image, point A is at 50 and point B is at 8. Comparing these:

$50 > 8$

So, point A represents a greater value than point B.

Questions for Further Exploration:

1. How do we determine positions on a number line?
2. What is the freezing point of water in other temperature scales, like Fahrenheit?
3. How do we represent negative numbers on a number line?
4. What other comparisons can be made between numbers on a number line?
5. What does it mean for a number to be “less” than another?

Tip:

When comparing numbers on a number line, numbers to the right are always greater than numbers to the left!