One day the temperature dropped from 4 degrees F to -15 dgrees f. How many degrees did it drop?

Answer 1

Draw the number line, locate +4 and -15 and find out how many units(degrees) separate the two temperatures.
The answer should be more than 15.

Answer 2

+4-15

Answer 3

One day the temperature dropped from 1 F to -18F. How many dregees did it drop