MTB 1103 - Business Mathematics Using Spreadsheets MTB 1103 - Business Mathematics Using Spreadsheets 3 cr. hrs. This course covers the fundamentals of business mathematics with applications to banking, payroll, taxes and insurance, purchasing merchandise, markup and markdown, interest, mortgages, and consumer credit. Concepts are introduced using the traditional method of calculating. You will be introduced to the same calculations performed using an electronic spreadsheet. Course Designations: (OA)