Question

The temperature outside at 3pm is -12°C. Overnight, the temperature drops to -31°C. By
how much does the temperature fall?​

Answer 1

Answer:

(-12 ) degree celsius - (-31) degree celsius

(-12) - (-31) will be

-19 will be the answer

Answer 2

Answer:

The temperature falls by -19°C

Step-by-step explanation:

for calculating the fall or change in temperature , first subtract the final temperature from the initial temperature.

So,

-31°C - ( - 12°C)

-31°C + 12°C

= -19°C

For decrease in temperature , it is negative.