1) Single user operating systems are always installed on a single computer. a) True b) False 2) A mouse and keyboard can be used to select the items on the screen in GUI. a) True b) False 3) An Excel formula always starts with an .............sign. a) + b) - c) = d) * 4) The ................... button automatically adds numbers in the selected cells. a) AutoSum b) Enter c) F2 d) f7 5) If two operators have the same precedence, Excel simply evaluates them from left to right. a) True b) False 6) The AutoSum button can also be used for finding the average, maximum, minimum, and count of values for the selected cells a) True b) False

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