The Digital SAT has 98 questions total — 54 Reading & Writing questions (27 per module) and 44 Math questions (22 per module).
Each section splits into two modules of equal size.
No. Each module includes pretest (experimental) questions that don't count toward your score. You can't tell which ones they are, so treat every question as scored.
Drill free SAT questions by skill, take timed modules, and project your 1600-scale score.