Answer
See sample problem and its solution.
Work Step by Step
"The temperature at 6 AM was negative 5 degrees Celsius.
At noon it was positive 12 degrees Celsius.
What is the difference between temperatures at noon an 6 AM?"
Solution:
"difference" is a result of subtraction,
(noon temp.) minus (6 AM temp.) =
$=12-(-5)\qquad $subtract $-5$ by adding $+5$
$=12+5$
$=17$
Answer: The difference was $17$ degrees.
