1 Mariah and Shane both started to work on a math problem and were comparing their work in math class. Are both of
their representations correct? Explain, and finish the math problem correctly to arrive at the correct answer.
Math Problem
Jessica's friend lent her $5. Later that day Jessica gave her
friend back 1 dollars
Which rational number represents the overall change to the
amount of money Jessica's friend has?
Mariah started the problem as follows:
Shane started the problem as follows:
-5
-5
3
-5 +1 -
4
= -5 +
-5+(1:)