Temperature difference 2

The temperature in London on new year’s day is -2 degree Celsius. The temperature in Moscow on the same day is -14 degree Celsius, what is the temperature difference between the two cities?

Correct result:

d =  12 °C

Solution:

$$\begin{gathered} t_1=-2^{\circ }\text{C } \\ {t}_2=-14^{\circ }\text{C } \\ d=t_1-t_2=(-2)-(-14)=12^{\circ }\text{C} \end{gathered}$$

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