Place that is cooler than the other would have lower temprature
Representing temperature fall by negative and rise by a positive integer add both to the initial temperature
The greatest integer is -1 which is less than 0.
The difference between 15 and -4 and show the integer in rising or upward direction.
Represent withdrawing amount as a negative integer then add current balance and withdrawing amount
All Positive numbers are greater than 0.
Represent profit by positive integer ,choose appropriate sign for loss and add both
Above the surface must have opposite sign as that of below
The place that is cooler than the other would have a lower temperature
Fall is the opposite sign of rising in any quantity
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