ATI TEAS Cram Sheet

High-yield facts for every section. Study tonight, crush it tomorrow.

📐 Math Formulas

Mean = Sum ÷ Count

Percent = (Part ÷ Whole) × 100

Dosage = (Desired ÷ On Hand) × Volume

Area: Rectangle = l×w | Triangle = ½b×h | Circle = πr²

Slope = (y₂−y₁) / (x₂−x₁)

1 kg = 2.2 lbs | 1 inch = 2.54 cm | 1 L = 1000 mL | 1 tsp = 5 mL

PEMDAS: Parentheses → Exponents → Multiply/Divide → Add/Subtract

🔬 Science High-Yield Facts

Mitosis: PMAT → 2 identical cells (growth/repair)

Meiosis: 4 haploid gametes (sex cells)

DNA: double helix, thymine | RNA: single, uracil

ATP: cell energy, made in mitochondria

pH blood: 7.35–7.45 (slightly alkaline)

Blood types: AB = universal recipient, O = universal donor

Photosynthesis: CO₂ + H₂O + light → glucose + O₂

Heart: Systole = contract, Diastole = relax, HR 60–100

Osmosis: water moves from low→high solute

Enzyme: biological catalyst, pH/temp sensitive

Pituitary: master gland | Thyroid: metabolism

Adrenal: cortisol + adrenaline | Pancreas: insulin/glucagon

Nervous: Sympathetic = fight/flight | Parasympathetic = rest/digest

Digestive order: Mouth → Esophagus → Stomach → Small intestine → Large intestine

Respiratory: Alveoli = gas exchange | Diaphragm = breathing control

Kidneys: filter blood, regulate electrolytes, excrete urea

Immune: B cells = antibodies | T cells = cell immunity

Newton 2nd: F = ma | 3rd: equal/opposite reaction

📖 Reading Strategies

Main idea: Often in first/last sentence of paragraph

Inference: Implied, not stated directly — use evidence

Author's purpose: Inform, persuade, entertain, describe

Tone words: objective, satirical, critical, nostalgic, optimistic

Primary source: firsthand (diary, original study)

Secondary source: interprets primary (textbook, review)

Context clues: definition, synonym, antonym, example

Passage structure: problem/solution, cause/effect, compare/contrast, sequence

✍️ English Language Rules

Comma splice: fix with semicolon, period, or conjunction

Apostrophe: girl's (possessive), NOT apples (plural)

Affect/Effect: Affect = verb, Effect = noun

Their/There/They're: possessive / place / they are

Semicolon: joins independent clauses; separates complex lists

Active voice: subject does action — preferred in formal writing

Parallel structure: series items must match grammatically

Dangling modifier: modifier lacks a clear subject — restructure sentence

S-V agreement: singular = singular verb; collective nouns usually singular

Accept/Except: Accept = receive; Except = excluding

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