Question

The coldest temperature ever recorded on Earth is 135.8°F below 0, recorded in Antarctica on July 21, 1983. The hottest temperature ever recorded on Earth is 134°F, recorded in Death Valley, California, on July 10, 1913.

What is the difference between those two temperatures?
1. Is the coldest temperature represented by a positive or
negative number?
2. Write a number to represent the coldest temperature.
3. Is the hottest temperature represented by a positive or
negative number?
4. Write a number to represent the hottest temperature.
5. Write a subtraction expression to represent the difference of the
two temperatures.
6. What is the difference between the two temperatures?

Answer 1

The difference between the hottest and coldest temperatures recorded on Earth is 269.8°F, with the coldest being -135.8°F and the hottest being +134°F.

Step-by-step explanation:

The coldest temperature ever recorded on Earth is -135.8°F below 0, which occurred in Antarctica. This number is represented by a negative number. To represent this coldest temperature, the number would be -135.8. On the other hand, the hottest temperature ever recorded on Earth is +134°F, recorded in Death Valley, and this is a positive number. To represent this hottest temperature, we would simply use the number 134.

To calculate the difference between the two temperatures, we can write a subtraction expression: 134 - (-135.8). The difference between the two temperatures is found by subtracting the coldest temperature from the hottest temperature, which equals 269.8°F. This is because when you subtract a negative number, it's the same as adding its positive counterpart.