SAT Math · Study & Practice
SAT Calculator Strategies
Owning a powerful calculator is not the same as scoring well with it. This guide is about judgement: knowing when the tool helps and when it slows you down, how to estimate to catch errors, how to verify an answer, and how to guess intelligently when you must. These habits are worth as many points as any formula.
Topics
1
Time-Saving Techniques
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2
Estimation Methods
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3
Verification Strategies
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4
Smart Guessing
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Keep going
Formula Reference Sheet
This chapter
Golden rules
| Speed | use the tool for messy work, not one-step math |
|---|---|
| Trust | estimate to sanity-check every answer |
| Never blank | eliminate, then guess — no penalty |
Digital SAT reference
Area & Circumference
| Circle area | A = πr² |
|---|---|
| Circle circumference | C = 2πr |
| Rectangle | A = ℓw |
| Triangle | A = ½ b h |
Volume
| Rectangular box | V = ℓwh |
|---|---|
| Cylinder | V = πr²h |
| Sphere | V = 4⁄3 πr³ |
| Cone | V = 1⁄3 πr²h |
| Pyramid | V = 1⁄3 ℓwh |
Right triangles
| Pythagorean theorem | a² + b² = c² |
|---|---|
| 30°–60°–90° | sides x : x√3 : 2x |
| 45°–45°–90° | sides s : s : s√2 |
Constants
| Degrees in a circle | 360° |
|---|---|
| Radians in a circle | 2π |
| Angles of a triangle | sum = 180° |
🖩 Graphing Calculator