SAT

12 Common SAT Mistakes and How to Fix Each One

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Most lost SAT points come from a handful of repeatable mistakes, not from missing knowledge: spending too long on one question, leaving answers blank, reviewing practice tests poorly, choosing answers that sound right but are not supported by the text, and solving for the wrong value in Math. Each one can be fixed with a specific habit.

Strategy mistakes

  • Treating every question as equally hard. Fix: if a question takes about twice the average time, guess, use Mark for Review and move on.
  • Leaving questions blank. Fix: there is no penalty for wrong answers, so check the question navigator before time runs out and answer everything.
  • Taking practice tests without reviewing them. Fix: spend at least as long reviewing as testing, and keep an error log of why you missed each question.
  • Panicking in Module 2. Fix: harder second-module questions usually mean you did well on the first module. Stay with your process.

Reading and Writing mistakes

  • Answering from memory or opinion. Fix: before you click, point to the exact words in the passage that prove your answer.
  • Choosing an answer that is true but does not answer the question. Fix: re-read the question stem right before choosing.
  • Guessing at grammar by ear. Fix: learn the core punctuation and agreement rules and name the rule each question tests.
  • Picking transitions that sound smart. Fix: decide first whether the second sentence continues, contrasts with or results from the first, then find the matching word.

Math mistakes

  • Solving for the wrong thing, such as x instead of 2x. Fix: note exactly what the question asks for before solving, and re-read the last line after.
  • Doing everything by hand. Fix: practise using the built-in Desmos calculator for systems, quadratics and checking answers.
  • Entering typed answers incorrectly. Fix: mixed numbers such as 3 1/2 are not accepted; enter 7/2 or 3.5. Negative answers, fractions and decimals are fine.
  • Skipping the check. Fix: plug your answer back into the original equation or check it in Desmos when you have time.

How to find your own most expensive mistakes

Take a full-length practice test in Bluebook. Label every missed question as a content gap, careless error, misread question or timing problem, then count the labels. The biggest category is where your next points are.

Sources

Frequently asked questions

Is there a penalty for guessing on the SAT?

No. Wrong answers are not subtracted, so you should answer every question, even if you have to guess.

How do I stop making careless mistakes on the SAT?

Build specific habits instead of relying on willpower: note what the question asks for, check answers by substituting them back, and track careless errors separately in an error log so you can see the pattern.

What is the most common SAT Math mistake?

Solving for the wrong quantity, such as finding x when the question asks for x + y or 2x, is one of the most common and most avoidable errors.

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