A figure display device includes a display unit and at least one processor configured to control to display a plurality of tags individual movement of which is allowed in accordance with a user operation in a predetermined work area. In a case where predetermined mathematical processing is designated to be executed a first figure which is displayed on one of the tags, the processor additionally displays a tag which is different from the tag that the first figure is displayed on and on which information on the predetermined mathematical processing is displayed in the work area, and controls to additionally display a second figure which is prepared by performing the predetermined mathematical processing on the first figure.