6.

Kenneth wants to add cells A1, A5, and A6 in his Excel spreadsheet. Which of the following formulas should Kenneth use?

=SUM(A1:A6)

=SUM(A1+6)

=SUM(A1,A5,A6)

=SUM(A1,5,6)

The correct formula Kenneth should use is:

=SUM(A1,A5,A6)