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Test Day

Cheat Sheet for the TEAS Test

The one-page formulas, grammar rules, and science facts you should review the night before your TEAS exam.

January 20, 2026 6 min read

This is not a substitute for weeks of studying. It is what you skim the night before to keep the highest-yield facts loaded in short-term memory.

Math

  • Percent change = (new − old) / old × 100
  • Slope = (y₂ − y₁) / (x₂ − x₁)
  • Area of a circle = πr² | Circumference = 2πr
  • 1 kg ≈ 2.2 lb | 1 in = 2.54 cm | 1 L ≈ 33.8 fl oz
  • Dosage: (desired / have) × quantity

Grammar

  • Use a comma before a coordinating conjunction (FANBOYS) joining two independent clauses.
  • Semicolons join two related independent clauses.
  • Its = possessive. It's = it is.
  • Who = subject. Whom = object.
  • Fewer for countable, less for uncountable.

Science quick hits

  • Cardiac blood flow: RA → RV → pulmonary artery → lungs → pulmonary vein → LA → LV → aorta.
  • Nephron order: Bowman's capsule → PCT → loop of Henle → DCT → collecting duct.
  • Meiosis makes 4 haploid cells. Mitosis makes 2 diploid cells.
  • pH < 7 acidic, pH > 7 basic. Blood pH ~7.35–7.45.
  • ATP is produced in the mitochondria via cellular respiration.

Reading

For every passage, name the main idea in one sentence before you look at the questions. If a question asks about tone, look for adjectives and adverbs. If it asks about author's purpose, look at the last paragraph.

Test-day

  1. Sleep 7–8 hours. Do not cram past 9 PM.
  2. Eat protein and complex carbs an hour before.
  3. Arrive 30 minutes early with two IDs.
  4. Answer every question — there is no penalty for guessing.
  5. Flag and move on when stuck. Come back with fresh eyes.

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