Formula sheet: no. Pearson prohibits personal notes and reference materials in the examination room. The administrator supplies note-taking materials. Wait until the exam begins before writing on them.
Calculator: yes, if it meets Pearson's policy. Pearson VUE recommends bringing a calculator, since the test center does not provide one. Acceptable calculators are hand-held, battery or solar-powered financial calculators used in real estate, finance, accounting, and business; they may have storage capabilities but must not contain alpha (letter) keys. Calculator rules can change, so confirm the current Pearson VUE Texas Real Estate Candidate Handbook before test day. Mathematical labels such as sin and cos are allowed.
Units and rounding: memorize 43,560 square feet per acre and 5,280 feet per mile. Follow the proration basis and closing-day allocation in the question. Keep intermediate values unrounded when possible, then use the requested precision or standard rounding.
Sources: candidate handbook, pages 9-10 and outline calculation notes, page 4.