In Spss, when you click Analysis/Descriptive/Crosstab you will then click at least one variable from the left column into the "Row" box and at least one from the left column into the "Columb" box (if you click several for each, all those in the row box will be run by all those in the column box). But before you click "Ok" to get the tables:
click the [STATISTICS] box and once open, click the two statistics below (open these pages to read about them)
Always click on Chi-Squared is a test of to what degree the sum of discrepancies of observed cell values (Obs for each cell) departs from what the expected value E of each cell (row total times col total divided by the grand total. Chi-squared is the sum ((Obs - E)^2)/(Grand Total) for each cell (^2 means squared). The df or degree of freedom for the table with NR = number of rows and NC = number of columns is (NR-1)(NC-1).