Question

Overnight temperature decreased by 15 1/2 degrees F. If the temperature began at -3.6 degrees, What is the current temperature?

Answer 1

your answer is -19.1

Explanation:

you add -3.6 and -15.5 to get -19.1

to determine that 15.5 is negative look at key words surrounding it, like decreased, that tells you that your number is a negative.

hope this helped :)