How to increment the summary field with conditional rule?

I have the same question as RWReynolds listed here.  I would like to add a value to the existing value of the summary field.  Is it possible to perform operations on the current value of the summary field?

I would like to increment a summary value by 1 based on the selections made in single choice and multiple choice fields.  

I have tried the following formulas and either get no results, incorrect results or javascript crashes on me. Please see form and screenshot attached. Any help would be appreciated.

     {summaryfield} + 1

     +=1

     +1

You can add First Question and Second Question in your form calculation widget.

ex.

Final output

Please try that and let us know if you have further questions.

I simplified the problem for the original post, and what you have works in that scenario. However, my scenario is more complicated.  I updated the form to be more representative.  The real form actually has 9 questions and 7 different "result" fields.

Can you answer this question:

Is it possible to perform operations on the current value of the summary field like in the image in the original post?

Updated form is at the same link:

https://form.jotform.com/91758213658163

Since we are unable to update a field with using its value, we should create some temporary fields. This workaround may be complicated with 9 questions. Please clone and inspect my form. 
Guide: How-to-Clone-an-Existing-Form-from-a-URL
https://www.jotform.com/91766127237967 

Thanks for the response - I was hoping there was another way, but will go with this one.  Thanks again!