Question

The temperature of a freezer started at 18ºC. After cooling for a few hours, the freezer had a temperature of –12ºC. What is the difference between the new, colder temperature and the original temperature?

- 12 - 18
-12- (- 18)
18 - 12
18 + (-12)

Answer 1

A.–12 – 18

Explanation:

We have to compute the difference (the subtraction) between the new, colder temperature, which is equal to -12 °C, and the original temperature, which is equal to 18 °C, that is:

colder temperature - original temperature

Replacing data:

-12 °C - 18 °C = -30 °C

Hope this helps! (:

Answer 2

the different is 32ºC

Explanation:

-12 - (-18) = -32

the different is 32ºC