TEAS Math Formulas (TEAS 7)

Q: Does the TEAS give you a formula sheet?

No. The ATI TEAS 7 does not provide a formula sheet or a conversion chart — only a basic on-screen calculator. Memorize the formulas and common conversions on this page before test day.

Q: Do I need to memorize unit conversions for the TEAS?

Yes. Know these cold: 1 in = 2.54 cm, 1 kg = 2.2 lb, 1 L = 1,000 mL, 1 tsp = 5 mL, 1 oz ≈ 30 mL, 1 ft = 12 in, and °F = 9/5 °C + 32.

Q: Can I use a calculator on the TEAS math section?

Yes. A basic calculator (+, −, ×, ÷, %, √ and memory keys) is built into the exam and, according to ATI, stays available on screen throughout. You can't bring your own. Practice with our free TEAS calculator.

Q: Which formulas matter most?

Percents (part = percent × whole and percent change), proportions (cross-multiply), area and perimeter, mean and median, and unit conversions. Most TEAS math questions are applied word problems, so you'll use these again and again.

Q: How many math questions are on the TEAS 7?

34 scored math questions (plus a few unscored ones) in 57 minutes.

A concise, printable cheat sheet of formulas you need for TEAS 7 Math. Grouped by lesson with quick practice links.

No formula sheet on test day. The TEAS gives you only a basic on-screen calculator, so memorize these formulas and conversions. Updated October 2026.

Need Science, Reading and English too? See the TEAS 7 cheat sheet for all 4 sections.

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Contents

Numbers & Algebra
Measurement & Data

Numbers & Algebra

Converting Fractions, Decimals, and Percents

Decimal → Percent $\text{percent} = (\text{decimal}) \times 100\%$
Percent → Decimal $\text{decimal} = (\text{percent}) \div 100$
Fraction → Decimal $\frac{a}{b} = a \div b$
Decimal → FractionWrite over 10, 100, 1000 … then simplify
Fraction → Percent $\text{percent} = \frac{a}{b} \times 100\%$

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Arithmetic with Rational Numbers

Add/Subtract $\frac{a}{b} \pm \frac{c}{d} = \frac{ad \pm bc}{bd}$
Multiply $\frac{a}{b} \times \frac{c}{d} = \frac{ac}{bd}$
Divide $\frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c}$
Order of OperationsPEMDAS; left→right for × ÷ and + −

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Ordering & Comparing Rational Numbers

Compare Fractions (<) $\frac{a}{b} < \frac{c}{d} \iff ad < bc$
Compare Fractions (>) $\frac{a}{b} > \frac{c}{d} \iff ad > bc$
Compare DecimalsAlign place value; compare digits left→right
Sqrt estimate $k^{2} < n < (k+1)^{2} \Rightarrow k < \sqrt{n} < k+1$

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Percent Problems

Part $\text{part} = \text{percent} \times \text{whole}$
Percent $\text{percent} = \frac{\text{part}}{\text{whole}}$
Whole $\text{whole} = \frac{\text{part}}{\text{percent}}$
Percent Change $\frac{\text{new} - \text{old}}{\text{old}} \times 100\%$

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One‑Variable Linear Equations

Solve $ax + b = c \Rightarrow x = \frac{c - b}{a}$
Distribute $a(b + c) = ab + ac$
Combine like termsAdd coefficients of the same variable

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Ratios & Rates of Change

Ratio $a:b = \frac{a}{b}$
Unit RateValue per 1 unit (divide by the units)
Rate of Change $\frac{\Delta y}{\Delta x}$

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Multi‑Step Word Problems

Distance $d = r \times t$
Simple Interest $I = P \times r \times t$ P = principal, r = yearly rate as a decimal, t = years
Percent Error $\left| \frac{\text{measured} - \text{true}}{\text{true}} \right| \times 100\%$

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Estimation & Rounding

Rounding≥ 5 → round up; < 5 → round down (at chosen place)
Compatible numbersChoose close, easy numbers for mental math

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Setting Up & Solving Proportions

Proportion $\frac{a}{b} = \frac{c}{d} \iff ad = bc$
Dosage $\text{Dose} = \left( \frac{\text{Desired}}{\text{Have}} \right) \times \text{Volume}$
Concentration $C = \frac{\text{solute}}{\text{solution}}$

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Expressions, Equations & Inequalities in Context

Inequality flipMultiply/divide by a negative → reverse the inequality sign
Translate words → mathDefine variable; write expression/equation/inequality

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Measurement & Data

Reading Tables, Charts & Graphs

Percent of Whole $\frac{\text{category}}{\text{total}} \times 100\%$
Mean (freq. table) $\bar{x} = \frac{\sum (x_i f_i)}{\sum f_i}$

Bar chart

Pie chart

Red (40)

Blue (35)

Green (25)

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Basic Descriptive Statistics

Mean $\bar{x} = \frac{\sum x}{n}$
MedianMiddle value; even n → average the two middles
ModeMost frequent value
Range $\text{max} - \text{min}$

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Relationships Between Two Variables

Slope $m = \frac{y_2 - y_1}{x_2 - x_1}$
Line $y = mx + b$
Correlationpositive / negative / none

Scatter plot (relationship)

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Geometry Essentials: Perimeter, Area, Volume & Pythagorean

Rectangle $P = 2(l + w),\ A = lw$
Triangle $A = \tfrac{1}{2}bh$
Trapezoid $A = \tfrac{1}{2}(b_1 + b_2)h$
Circle $C = 2\pi r,\ A = \pi r^{2}$
Right Triangle $a^{2} + b^{2} = c^{2}$
Rectangular Prism $V = lwh$
Cube $V = s^{3}$

Rectangle (A = lw)

Right Triangle (a²+b²=c²)

Circle (C = 2πr; A = πr²)

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US–Metric & Intra‑System Conversions

Metric1 km = 1000 m; 1 m = 100 cm = 1000 mm; 1 L = 1000 mL; 1 kg = 1000 g
US Length12 in = 1 ft; 3 ft = 1 yd; 5280 ft = 1 mi
US Volume8 oz = 1 cup; 2 cups = 1 pt; 2 pt = 1 qt; 4 qt = 1 gal
US Weight16 oz = 1 lb
Key Cross‑System1 in = 2.54 cm; 1 lb ≈ 0.454 kg; 1 oz ≈ 29.57 mL; 1 tsp = 5 mL
Temperature $F = \tfrac{9}{5}C + 32,\ \ C = \tfrac{5}{9}(F - 32)$

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TEAS math formulas: FAQ

Does the TEAS give you a formula sheet?

No. The ATI TEAS 7 does not provide a formula sheet or a conversion chart — only a basic on-screen calculator. Memorize the formulas and common conversions on this page before test day.

Do I need to memorize unit conversions for the TEAS?

Yes. Know these cold: 1 in = 2.54 cm, 1 kg = 2.2 lb, 1 L = 1,000 mL, 1 tsp = 5 mL, 1 oz ≈ 30 mL, 1 ft = 12 in, and °F = 9/5 °C + 32.

Can I use a calculator on the TEAS math section?

Yes. A basic calculator (+, −, ×, ÷, %, √ and memory keys) is built into the exam and, according to ATI, stays available on screen throughout. You can't bring your own. Practice with our free TEAS calculator.

Which formulas matter most?

Percents (part = percent × whole and percent change), proportions (cross-multiply), area and perimeter, mean and median, and unit conversions. Most TEAS math questions are applied word problems, so you'll use these again and again.

How many math questions are on the TEAS 7?

34 scored math questions (plus a few unscored ones) in 57 minutes.

Practice the calculator: free TEAS calculator

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