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Digital SAT: free practice test

Start with 10 free questions to see what needs more practice. Finish to see your score, weakest units and every option explained.

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Practice test questions with answers and explanations

Try the questions in the test above first, then open each one here to see the correct answer and why every other option is wrong.

01Which choice is best supported by the text?

Practice question Unit: Information and Ideas

The archive once displayed only founders’ letters. Leila added shop receipts and repair requests. Visitors began asking about ordinary residents rather than prominent families. She considered this shift the exhibition’s chief success.

  1. ARepair records proved more reliable than letters.

    No comparison of reliability is reported.

  2. BThe exhibition chiefly improved visitors’ knowledge of the founders’ arrival dates.

    Attention shifted from prominent families toward ordinary lives; dates of arrival are not discussed.

  3. CEveryday records widened visitors’ historical understanding. ✓ Correct answer

    The changed questions reflect broader interest.

  4. DThe new records exposed falsehoods in the founders’ letters.

    The passage reports broader questions, not errors in the letters.

Reference: College Board, SAT content domains: Information and Ideas — central ideas, details, inference and evidence. https://satsuite.collegeboard.org/practice/content-domains

02As used in the text, "qualified" most nearly means which choice?

Practice question Unit: Craft and Structure

The mapmaker retained the old harbor names but qualified her description of the northern channel. Rather than calling it safe, she wrote that it was navigable only at high tide and in calm weather.

  1. Arephrased

    The essential change is the restriction to high tide and calm weather, not merely alternative wording.

  2. Bendorsed

    Calling the channel safe only under conditions limits rather than simply endorses the original description.

  3. Ccertified

    The mapmaker restricts navigability to certain conditions, rather than certifying unrestricted safety.

  4. Dlimited ✓ Correct answer

    The safety description now has conditions: tide and weather.

Reference: College Board, SAT content domains: Craft and Structure — words in context, structure/purpose, and cross-text connections. https://satsuite.collegeboard.org/practice/content-domains

03As used in the text, "yielded" most nearly means which choice?

Practice question Unit: Craft and Structure

At first the archive appeared to contain little about the expedition. A closer search yielded a cook’s notebook and three sketches tucked inside an unrelated ledger. These modest discoveries supplied the only descriptions of the travelers’ daily routines.

  1. Aexamined

    The search resulted in discoveries; examining them is not the meaning of yielded here.

  2. Bproduced ✓ Correct answer

    The search produced previously overlooked records.

  3. Crelinquished

    The search discovered the notebook and sketches; it did not give them up.

  4. Dcataloged

    The sentence describes discovering hidden records, not formally listing them.

Reference: College Board, SAT content domains: Craft and Structure — words in context, structure/purpose, and cross-text connections. https://satsuite.collegeboard.org/practice/content-domains

04Which choice completes the text with the most logical transition?

Practice question Unit: Expression of Ideas

A student-built clock kept accurate time in the quiet classroom. _____ when the class placed it beside a vibrating motor, the hands advanced irregularly, revealing a limitation that the first test had not exposed.

  1. AFor instance,

    The failed test is not an example of accurate performance.

  2. BTherefore,

    Inaccuracy is not presented as a consequence of classroom accuracy.

  3. CHowever, ✓ Correct answer

    The motor test contrasts with the earlier successful test.

  4. DSimilarly,

    The two outcomes differ rather than resemble one another.

Reference: College Board, Expression of Ideas: Transitions and Rhetorical Synthesis. https://satsuite.collegeboard.org/practice/content-domains

05Which choice completes the text so that it conforms to the conventions of Standard English?

Practice question Unit: Standard English Conventions

The conservator expected the ink to fade under the bright lamp. After several hours, however, the writing remained clearly _____ the paper surrounding it had begun to yellow.

  1. Alegible therefore

    Therefore is a conjunctive adverb, not a coordinating conjunction, and cannot join two independent clauses without a boundary.

  2. Blegible

    Without punctuation, the two independent clauses form a fused sentence.

  3. Clegible; ✓ Correct answer

    A semicolon properly separates two closely related independent clauses.

  4. Dlegible,

    A comma alone cannot join the independent clauses ending in legible and beginning with the paper.

Reference: College Board, Standard English Conventions: Boundaries; Form, Structure, and Sense. https://satsuite.collegeboard.org/practice/content-domains

06If 3(x − 4) + 2 = 2(x + 5), what is x?

Practice question Unit: Algebra

  1. A20 ✓ Correct answer

    Expand to 3x − 10 = 2x + 10; subtracting 2x and adding 10 gives x = 20.

  2. B18

    At 18 the sides are 44 and 46.

  3. C8

    At 8 the two sides are 14 and 26.

  4. D12

    At 12 the sides are 26 and 34.

Reference: College Board, SAT Math — Algebra: linear equations, systems, and inequalities. https://satsuite.collegeboard.org/sat/whats-on-the-test/math

07A rental costs $18 plus $7 per hour. A customer can spend at most $60. What is the greatest whole number of hours the customer can rent?

Practice question Unit: Algebra

  1. A7

    7 hours costs $67, above the budget.

  2. B8

    8 hours costs $74, above the budget.

  3. C6 ✓ Correct answer

    18 + 7h ≤ 60 gives h ≤ 6, so the maximum whole number is 6.

  4. D5

    5 hours costs $53, but one more hour is affordable.

Reference: College Board, SAT Math — Algebra: linear equations, systems, and inequalities. https://satsuite.collegeboard.org/sat/whats-on-the-test/math

08The roots of x² − 8x + c = 0 differ by 6. What is c?

Practice question Unit: Advanced Math

  1. A28

    With c = 28 the discriminant is negative, so there are no real roots.

  2. B7 ✓ Correct answer

    The sum is 8, so the roots are 1 and 7; their product is 7.

  3. C12

    A product of 12 gives roots 2 and 6, differing by 4.

  4. D15

    A product of 15 gives roots 3 and 5, differing by 2.

Reference: College Board, SAT Math: Advanced Math — nonlinear equations, functions, and equivalent expressions. https://satsuite.collegeboard.org/sat/whats-on-the-test/math

09A mixture uses concentrate and water in a ratio of 2:7 by volume. How many liters of concentrate are in 36 liters of mixture?

Practice question Unit: Problem-Solving and Data Analysis

  1. A28

    28 liters is the amount of water.

  2. B4

    4 liters represents one ratio part, not two.

  3. C10.3

    Using 2/7 compares concentrate to water, not to the whole mixture.

  4. D8 ✓ Correct answer

    There are 9 parts total, so concentrate is (2/9)(36) = 8 liters.

Reference: College Board, SAT Problem-Solving and Data Analysis, seven skills including proportions, data, probability, inference, and statistical claims. https://satsuite.collegeboard.org/sat/whats-on-the-test/math/types/problem-solving

10Two parallel lines are cut by a transversal. Two interior angles on the same side of the transversal measure (3x + 10)° and (5x − 6)°. What is x?

Practice question Unit: Geometry and Trigonometry

  1. A22 ✓ Correct answer

    Same-side interior angles sum to 180°: 8x + 4 = 180, so x = 22.

  2. B8

    8 makes the angles equal, but same-side interior angles are supplementary.

  3. C20

    20 gives a sum of 164°, not 180°.

  4. D23

    23 gives a sum of 188°, not 180°.

Reference: College Board, SAT Geometry and Trigonometry: area and volume, lines and triangles, trigonometry, and circles. https://satsuite.collegeboard.org/sat/whats-on-the-test/math/types/geometry-trigonometry

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