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- The Daily, every day
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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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Miss one, learn why.
Every question is tagged by domain and skill, and every answer comes with an explanation.
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Drill that skill.
Practice any single skill at any difficulty, or just the questions you got wrong.
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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
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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.
Pro is $20 a month or $200 a year: unlimited practice with no daily limit, plus every full-length test and Challenge test. Peak is $29 a month or $280 a year: everything in Pro, plus the full Learn course and Peak Plan. Cancel anytime from your account.
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.
Command of Evidence (Quantitative) · Lesson 4
Claims that need two data points or a comparison
Many claims can't be supported by one number. Rose, fell, more than, unlike and the largest all describe a relationship between values, so the right choice has to give every side of it.
Change over time needs the same group at two times, such as from 200 in 2010 to 350 in 2020. A value from a single year is a snapshot. It can't show change, even if it is the highest value on the graph.
A difference between groups needs both groups, measured the same way and usually at the same time. A claim with unlike, but not or while usually has two parts, and the right choice covers both.
Comparing changes (grew more, fell faster) needs the change for each group: a start and an end for one group, and a start and an end for the other. Subtract to compare. A rise from 12 to 21 (9 points) is bigger than a rise from 40 to 46 (6 points), even though 46 is the larger final value.
Not every and one exception claims work the other way. One case where the pattern fails is enough, and cases where the pattern holds don't help.
Worked example Medium
Share of Electricity Generated by Wind in Three Regions (%)
| Region | 2012 | 2022 |
|---|---|---|
| Northern Plains | 14 | 38 |
| Coastal South | 9 | 12 |
| Central Valley | 21 | 25 |
Energy economist Farida Haidari studies how quickly regions have adopted wind power. She reports that over the decade from 2012 to 2022, wind power's share of electricity grew far more in the Northern Plains than in the other two regions.
Which choice most effectively uses data from the table to support Haidari's claim?
- In 2022, wind power's share of electricity was 38% in the Northern Plains, higher than in either of the other regions.
- In 2012, the Central Valley had the largest share of electricity from wind power, 21%.
- Wind power's share rose from 9% to 12% in the Coastal South and from 21% to 25% in the Central Valley.
- Wind power's share rose by 24 percentage points in the Northern Plains, from 14% to 38%, but by only 3 points in the Coastal South and 4 points in the Central Valley.Answer
How to solve it
- Grew far more compares changes, so each region needs a start (2012) and an end (2022).
- Subtract: Northern Plains 38 − 14 = 24 points; Coastal South 12 − 9 = 3 points; Central Valley 25 − 21 = 4 points.
- Only choice D gives the change for all three regions, with the Northern Plains far ahead. Choice A is a 2022 snapshot, and choice C leaves out the Northern Plains.
Why each choice is right or wrong
- A. Incorrect. It's accurate, but it's a snapshot of 2022. A high final share doesn't show how much the share grew; that takes the 2012 values too.
- B. Incorrect. It's accurate, but it describes one region in one year. It shows nothing about growth over the decade.
- C. Incorrect. Both changes are accurate, but the choice leaves out the Northern Plains, the region the claim says grew far more. It gives only one side of the comparison.
- D. Correct. The claim compares growth, so it needs the change in each region: 38 − 14 = 24 points in the Northern Plains, 12 − 9 = 3 in the Coastal South and 25 − 21 = 4 in the Central Valley.
Worked example Hard
Psychologist Bao Tran asked participants in three age groups to study a list of 20 words, either by reading it aloud or by reading it silently, and then recorded how many of the words they could recall. Tran found that reading aloud gave the youngest participants a clear advantage but made no difference at all for the oldest.
Which choice most effectively uses data from the graph to support Tran's finding?
- Participants ages 18–20 who read aloud recalled 15 words, more than any other age group that read aloud.
- Participants ages 8–10 recalled 12 words after reading aloud and 8 after reading silently, while participants ages 18–20 recalled 15 words either way.Answer
- Participants ages 13–15 recalled 14 words after reading aloud and 13 after reading silently.
- Participants ages 8–10 recalled 12 words after reading aloud and 8 after reading silently, while participants ages 13–15 recalled 14 and 13.
How to solve it
- The finding has two parts: reading aloud helped the youngest group, and it made no difference for the oldest. A choice must cover both.
- Read each pair of bars: ages 8–10, 12 aloud versus 8 silently; ages 13–15, 14 versus 13; ages 18–20, 15 versus 15.
- Choice B gives the youngest group's 4-word advantage and the oldest group's tie. Choice D has the right first half but gives the middle group instead of the oldest.
Why each choice is right or wrong
- A. Incorrect. It's accurate, but it compares age groups that all read aloud. The finding is about the difference between reading aloud and reading silently.
- B. Correct. The finding has two parts, and this choice covers both: ages 8–10 recalled 4 more words after reading aloud (12 versus 8), and ages 18–20 recalled 15 words either way.
- C. Incorrect. It's accurate, but it describes the middle age group. The finding is about the youngest and the oldest.
- D. Incorrect. It's accurate, and its first half supports the part about the youngest participants, but it gives the middle group instead of the oldest. It can't show that reading aloud made no difference for ages 18–20.
Trap The snapshot
A claim about change (rose, grew, declined) needs values from two times. A wrong choice often gives one impressive value, such as the highest bar in the final year. However striking, a single year can't show change.
Trap Half the comparison
When a claim names two groups or has two parts, a wrong choice often supports just one of them. Check that the choice covers every group and every part the claim mentions.
Practice
Choose a section, then practice a whole domain or drill a single skill.
Full-length tests
Each test mirrors the digital SAT: 98 questions across four modules, 2 hr 14 min on official timing.
A little harder than the real SAT. These tests can run slightly tougher than test day, which makes them good practice: if you can handle these, the real one should feel easier. No question appears in more than one test, Challenge Tests included.
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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