Question

Monday's temperature was 6 degree the low temperature was -3 degree what was the difference between the high and low temperatures

Answer 1

The the difference between the high and low temperatures was 9 degrees. 

Answer 2

To find the difference between two numbers, you subtract them from eachother. 6 - -3 is the same as 6+3, so the difference between the two temperatures is 9 degrees.