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- The Daily, every day
- 36 practice questions a day, each with an explanation: 12 easy, 12 medium, 12 hard
- Full-length Test A and Challenge Test 1
- All 1,023 vocabulary words: browse, flashcards and quiz
Digital SAT practice
Reach your peak.
A quick run every day, an explanation for every question, and full-length tests on official timing.
Free, no card. You also get 36 practice questions a day: 12 easy, 12 medium and 12 hard.
The DailySTEP 1
- Three hearts. A miss costs one.
- Streaks pay. ×2 from three in a row, ×3 from six.
- Your longest streak. Beat it tomorrow.
Full-length tests
The real test, rehearsed.
98 questions across four modules, in the digital SAT’s order and on its timing, with a highlighter, a question map and a timer you can see.
How it works
One run a day. One skill at a time.
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1
Play the Daily.
A quick run with three hearts. String right answers together and the questions get harder and the points multiply.
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2
Miss one, learn why.
Every question is tagged by domain and skill, and every answer comes with an explanation.
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3
Drill that skill.
Practice any single skill at any difficulty, or just the questions you got wrong.
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4
Beat your best.
Come back tomorrow and climb. Progress shows your accuracy and your strongest skills.
Built around the real SAT blueprint.
Every question is tagged by section, domain, skill and difficulty, so you can practice exactly what you need. Full tests run like test day: two Reading & Writing modules, a break, then two Math modules.
Free daily practice
12 easy, 12 medium and 12 hard questions free every day, each with a full explanation. Filter by section, domain, skill and difficulty. Resets at midnight.
Real SAT timing
Take any test on official timing, extended 1.5× time, or untimed to focus purely on accuracy.
Adaptive full-length tests
Four modules in official order. The second module of each section adapts to how you did on the first.
Vocabulary
1,023 essential SAT words. Browse the list, flip flashcards, or quiz yourself.
Your progress
Accuracy across daily practice and full tests, your strongest skills, and the ones that need the most help.
Games
PEAK Survivor, Hole and Peak Defense: three games powered by SAT practice questions.
Explanations
Every answer, explained.
Not just the right letter: how to get there, and why the tempting answer is wrong.
MathProblem-Solving and Data AnalysisHard
A store raises the price of a jacket by 20%. Later, it lowers the new price by 20%. The final price is what percent of the original price?
A80%
B96%Correct
C100%The trap
D104%
Check with $100: $100→then$120→then$96
Turn each change into a multiplier.
Up 20% means × 1.20. Down 20% means × 0.80.
Apply them in order.
1.20 × 0.80 = 0.96
Read the answer.
The final price is 96% of the original. That’s B.
Why not 100%?
The 20% cut is taken from the higher price, so it removes more than the 20% increase added.
Test day
What test day looks like.
Every Peakscor full test follows this order. In the standard tests, the second module of each section adapts to how you did on the first.
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Reading & Writing · Module 1
27 questions32 min
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Reading & Writing · Module 2
27 questions32 min
Adapts to how you did on Module 1. -
Break
10 min
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Math · Module 1
22 questions35 min
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Math · Module 2
22 questions35 min
Adapts to how you did on Module 1.
98 questions · 2 hr 14 min of testing, plus the break
Peakscor by the numbers
- 36free practice questions every day
- 98questions in every full-length test
- 1,023SAT vocabulary words
- 1.5×extended-time option on every test
Free vs Pro
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The free plan is the real thing, not a trial. Pro removes the limits.
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- Everything in Free
- Unlimited practice, no daily limit
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Prices in US dollars. Pro checkout isn’t open yet, so nothing can be bought today.
FAQ
Questions, answered.
The Daily, plus 36 practice questions every day: 12 easy, 12 medium and 12 hard, each with a full explanation. Full-length Test A, Challenge Test 1 and all 1,023 vocabulary words are free too. No card needed.
Unlimited practice with no daily limit, plus every full-length test and Challenge test. Pro is $20 a month or $180 a year. Checkout isn’t open yet, so nothing can be bought today.
98 questions across four modules, in the digital SAT’s order: Reading & Writing Module 1 and Module 2 (27 questions each), a 10-minute break, then Math Module 1 and Module 2 (22 questions each). On official timing that’s 2 hr 14 min of testing. You get estimated section scores and a total at the end.
Yes. In the standard full-length tests, Module 2 of each section is the harder version if you get 60% or more of Module 1 right, and the easier version if you don’t. Challenge tests use the hardest material throughout.
Official timing, extended 1.5× time, or untimed, on every test, including the free ones. Extended time allows 48 minutes for each Reading & Writing module and about 52 for each Math module. Untimed removes the clock so you can focus on accuracy.
A quick run with three hearts. Each right answer builds your streak: the questions get harder as it grows, and your points multiply (×2 from three in a row, ×3 from six). A miss costs a heart and drops you back to easy. Best is your longest streak.
Every day at midnight. You get a fresh 12 easy, 12 medium and 12 hard.
No. Peakscor is an independent SAT practice tool, not affiliated with the College Board. Scores shown are estimates.
Your next point starts today.
Free, no card.
Form, Structure, and Sense · Lesson 0
Subject–verb agreement
A verb must agree with its subject in number. A singular subject takes a singular verb (the bridge sways), and a plural subject takes a plural verb (the bridges sway). The hard part is finding the real subject.
The SAT puts words between the subject and the verb: a prepositional phrase (of the maps, in the samples), a clause beginning with which or that, or an interrupter set off by commas. The noun right next to the blank is often not the subject. Cross out those words and read the subject and verb together: The collection [of antique maps] contains.
The subject is never inside a prepositional phrase. In the list of ingredients is short, the subject is list, not ingredients. Phrases such as along with, as well as and together with don't make a singular subject plural either. There is an exception to crossing out: after a word of amount such as some, any, most, all, more, half, the majority, a fraction or a percentage, the noun after of decides the number: most of the water is, but most of the samples are.
Two subjects joined by and are usually plural: the painting and the frame are. If each or every comes before them, the subject is singular (each painting and frame is), and so is a pair that names one thing (peanut butter and jelly is). A subject that begins with each or one of is singular: one of the samples was.
Sometimes the subject comes after the verb, as in Along the shore stand three lighthouses. Flip the sentence to find it: three lighthouses stand.
Worked example Easy
The collection of antique maps in the town library more than three hundred items, some of which date to the 1600s.
Which choice completes the text so that it conforms to the conventions of Standard English?
- contain
- containsAnswer
- have contained
- are containing
How to solve it
- Find the subject. Of antique maps and in the town library are prepositional phrases, so cross them out.
- What is left is The collection more than three hundred items. The subject is collection, which is singular.
- A singular subject needs a singular verb. Only contains is singular.
Why each choice is right or wrong
- A. Incorrect. Contain is a plural verb. It agrees with maps, but maps sits inside the phrase of antique maps and is not the subject.
- B. Correct. The subject is the singular noun collection, and contains is the singular verb.
- C. Incorrect. Have contained uses the plural helping verb have, which doesn't agree with the singular subject collection.
- D. Incorrect. Are containing uses the plural helping verb are, which doesn't agree with the singular subject collection.
Worked example Medium
The ability of geckos to climb smooth glass, which researchers did not fully explain until the early 2000s, on millions of microscopic hairs on the animals' toes.
Which choice completes the text so that it conforms to the conventions of Standard English?
- depend
- have depended
- dependsAnswer
- were depending
How to solve it
- The nouns closest to the blank are researchers and the early 2000s, both plural. They sit inside the interrupter which researchers did not fully explain until the early 2000s, so cross it out.
- Cross out of geckos to climb smooth glass too. What remains is The ability on millions of microscopic hairs.
- The subject ability is singular, so the verb must be singular: depends.
Why each choice is right or wrong
- A. Incorrect. Depend is plural. It matches the nearby plural nouns geckos and researchers, but the subject is the singular noun ability.
- B. Incorrect. The helping verb have is plural, so have depended doesn't agree with the singular subject ability.
- C. Correct. With the phrase and the interrupter crossed out, the subject is ability, and depends is the singular verb it needs.
- D. Incorrect. The helping verb were is plural, so were depending doesn't agree with the singular subject ability.
Your progress
How you’re doing across daily practice and full-length tests.
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Each test mirrors the digital SAT: 98 questions across four modules, 2 hr 14 min on official timing.
Challenge Tests Hardest of the hardest
Same 98-question format, but every question is drawn from the toughest SAT material: Challenging-tier math throughout and the hardest reading.
Vocab
Study the classic SAT vocabulary list. Browse, flip flashcards, or quiz yourself.
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