Use a dash to join the page span

Warning²Federal courts, Illinois courts21st and 22nd editions

Inclusive page numbers are joined by an en dash or hyphen — “186, 297-98”, not “186, 297 to 298” — except where the page numbering itself would make a dash unclear.¹

1. 1R. 3.2(a) Pages; B3 Subdivisions.
2. 2A warning: the form is usually wrong under the rule in note 1, and context can justify it.