Calculating the Matrix table values

Also is there a template for doing scores on choices and totals showing on a different tab?

You can actually use the Form Calculation widget in order to apply formula on the Matrix table.

In the Calculation Wizard, you can click the "Add Field" button and add the "Matrix" field.

Here's a helpful guide: How-to-Perform-Form-Calculation-in-the-Matrix-Field

Hope that helps. Thank you.