REF: pass str_rep through arithmetic ops more consistently (#31297)

Author: jbrockmendel

pandas/core/ops/__init__.py

@@ -828,7 +828,7 @@ def f(self, other, axis=default_axis, level=None):
             return _combine_series_frame(self, other, op, axis=axis)
         else:
             # in this case we always have `np.ndim(other) == 0`
-            new_data = dispatch_to_series(self, other, op)
+            new_data = dispatch_to_series(self, other, op, str_rep)
             return self._construct_result(new_data)
 
     f.__name__ = op_name
@@ -852,13 +852,15 @@ def f(self, other):
             new_data = dispatch_to_series(self, other, op, str_rep)
 
         elif isinstance(other, ABCSeries):
-            new_data = dispatch_to_series(self, other, op, axis="columns")
+            new_data = dispatch_to_series(
+                self, other, op, str_rep=str_rep, axis="columns"
+            )
 
         else:
 
             # straight boolean comparisons we want to allow all columns
             # (regardless of dtype to pass thru) See #4537 for discussion.
-            new_data = dispatch_to_series(self, other, op)
+            new_data = dispatch_to_series(self, other, op, str_rep)
 
         return self._construct_result(new_data)