Can I combine three variables by using the action of the Expression in advanced Actions?

I have an assessment (contains 9 questions) in my project that contains 3 lessons. Each question relates to a specific lesson. I want to break the score on lessons on my Quiz slide, instead of display the total score for all of the evaluation of the results, so that the learner knows what activities require additional study. I created a variable to contain the points marked on each question and assigning points to this variable using "QuizInfoLastPointsScored".

Screen Shot 2015-03-26 at 11.53.18 AM.png

I know what are the questions focus on what lesson:

Lesson 1: questions 1-3

Lesson 2: questions 4 to 6

Lesson 3: questions 7 to 9


However, I don't know how to add 3 variables together to get the total for this lesson. The action of "Expression" only allows me to combine the 2 variables:

Screen Shot 2015-03-26 at 11.58.09 AM.png

How can I add a third variable in the action "Expression"?

I thought you don't need three totals: a global and two partial totals. The latter will be calculated not the subtotals. There is no need to first put the score in a variable separate at all. I used only the variables for totals of the three. You will calculate only the total world, and who could be with a single statement, no need for two to all:

Expression v_total = v_total + cpQuizInfoLastSlidePointScored



Tags: Adobe Captivate

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