Question

pls write the answer woth explation. the ans is -25°c. but how

Answer 1

Given,

Temperature outside = -35°C.
Temperature inside = -10°C.

Difference of temperature can be calculated by subtracting the temperature outside from the temperature inside.

An important tip to be noted here is that:

●
$( - ) - ( - ) = ( - ) +$
This means that while finding the difference between 2 negative numbers = 1st number + additive inverse of 2nd number.

So,

(-35°C) - (-10°C)
= -35 + (10)
= -35 + 10

●While adding a positive and a negative number we subtract it and place the sign of the greater number.

= -(35-10)
= -25°C.

Therefore, the difference in temperature in the hotel I. Greenland is -25℃.