Can I combine three variables using the Expression action in Advanced Actions?

Question

I have an assessment (contains 9 questions) in my project that contains 3 lessons. Each question relates to a specific lesson. On my Quiz results slide, instead of displaying the total score for the entire assessment, I want to break the score out into lessons so that the learner knows which lessons require additional study. I have created a variable to hold the points scored on each question, and assigning the points to that variable using 'QuizInfoLastPointsScored'

I know which questions relate to which lesson:

Lesson 1: questions 1-3

Lesson 2: questions 4-6

Lesson 3: questions 7-9

However, I do not know how to add 3 variables together to get the combined total for that lesson. The 'Expression' action only allows me to combine 2 variables:

How do I add a third variable into the 'Expression' action?

Lilybiri · Accepted Answer

Ok thanks, after reviewing this I got another idea ... wouldn't something simple like this do the job?

I thought you did need three totals: one global and two partial totals. This last one will not calculate the partial totals. There is no need whatsoever to put first the score in a separate variable at all. I only used variables for the three totals. You will only calculate the global total, and that could be with one statement, no need for two at all:

Expression v_total = v_total + cpQuizInfoLastSlidePointScored

TLCMediaDesign · Answer

Add another expression... allQuestions = L1_1and2 + question3

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