Saxon Math Workbook Master?

Hello,
I’m looking for Saxon 5/4 book in Spanish. I could help my girl with English, but I would prefer that she can work on it more independently. I have found in amazon “Saxon Math 5/4: Workbook Master Spanish”. Could you tell me if this is the “standard” Saxon text? What does “Workbook Master” mean?
Thank you very much in advance.

Not familiar with Saxon Math Workbook Master. If you want a math program in Spanish, both MEP and Math Mammoth are available in Spanish.

Rod and Staff is a Homeschool curriculum publisher and I do believe their math program is available in Spanish also.