Question

1. The coldest place in Utah is Middlesink, near Logan. One day the temperature there was −17 degrees. You drive from Middlesink to Salt Lake where the temperature is 30 degrees. What is the change in temperature? Explain.

Answer 1

30-(-17) = 30+17 = 47

Answer 2

47 degrees

Explanation:

The difference between the two is 47 degrees. The equation is 30-(-17).

When you subtract a negative it's really the same as adding.