Question

overnight, the temperature in toronto, ontario dropped from 3°c to -4°c. how many degrees did the temperature change? the temperature in fairbanks, alaska rose from -1°f to 9°f. how many degrees did the temperature change?

Explanation:

Step1: Calculate temperature change in Toronto

To find the temperature change, subtract the initial temperature from the final temperature. For Toronto, the initial temperature is $3^{\circ}C$ and the final is $- 4^{\circ}C$. So the change is $-4 - 3=-7^{\circ}C$. The magnitude of the change is $| - 7| = 7^{\circ}C$.

Step2: Calculate temperature change in Fairbanks

For Fairbanks, the initial temperature is $-1^{\circ}F$ and the final is $9^{\circ}F$. The change is $9-(-1)=9 + 1=10^{\circ}F$.

Answer:

The temperature in Toronto changed by $7$ degrees Celsius.
The temperature in Fairbanks changed by $10$ degrees Fahrenheit.