beeboppity
Answered

For questions x-x perform the indicated operation. Don't forget to determine the sign of your answer first.

Q: What does the "sign of my answer" mean? Here is an example of one of the operations..
77.94 - 77.94 + 42.09

Answer :

77.94 - 77.94 + 42.09 = 42.09
that's correct?
mathstudent55

77.94 - 77.94 equals zero because you are subtracting a number from itself.

Then you add 0 to 42.09 to get 42.09.

77.94 - 77.94 + 42.09 =

= 0 + 42.09

= 42.09

The sign of the answer is positive since you are adding a positive nunmber (42.09) to zero.

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