CBEST practice questions, and the two numbers you have to clear

CBEST at a glance, with the source for every line

Every row below is quoted from a document published by CTC and carries the date we checked it. Where CTC publishes nothing, the row says so instead of quoting a number from somewhere else.

Sections

Three sections: Reading, Mathematics and Writing. Sections are administered in separate testing sessions and must be registered for separately.Source: California Educator Credentialing Examinations, verified 7 August 2026

Questions

Reading: 50 multiple-choice questions. Mathematics: 50 multiple-choice questions. Writing: 2 essays.Source: California Educator Credentialing Examinations, verified 7 August 2026

Reading skill factors

The Reading section draws on two skill factors. Approximately 40 percent of its questions come from critical analysis and evaluation, and approximately 60 percent from comprehension and research skills.Source: California Educator Credentialing Examinations, CBEST test page, verified 7 August 2026

Mathematics skill factors

The Mathematics section draws on three skill factors: estimation, measurement and statistical principles (approximately 30 percent); computation and problem solving (approximately 35 percent); and numerical and graphic relationships (approximately 35 percent). Calculators are prohibited.Source: California Educator Credentialing Examinations, CBEST test page, verified 7 August 2026

Time limit

1 hour 30 minutes each for Reading and Writing; 2 hours for Mathematics. A further 15 minutes is provided to complete a nondisclosure agreement and tutorial.Source: California Educator Credentialing Examinations, verified 7 August 2026

Score scale

Scaled scores run 20–80 for each of the three sections.Source: California Educator Credentialing Examinations, verified 7 August 2026

Passing score

A scaled score of 41 on each section, and a total of 123 across Reading, Mathematics and Writing. It is not possible to pass if any section score is below 37, however high the total.Source: California Educator Credentialing Examinations, verified 7 August 2026

Combining scores across sittings

The highest score you obtain on each section, no matter when earned, is used to compute your total CBEST score. It is not necessary to repeat a section passed with 41 or higher, though a higher score on it may help you reach the 123 total.Source: California Educator Credentialing Examinations, CBEST Test Results Information, verified 7 August 2026

Fee

US$30 per section, paid separately for each section registered.Source: California Educator Credentialing Examinations, verified 7 August 2026

Delivery

Computer-based at a test center, or online-proctored remotely.Source: California Educator Credentialing Examinations, verified 7 August 2026

Retake policy

You must wait 45 calendar days from the date you took a test before retaking that test or subtest on computer.Source: California Educator Credentialing Examinations, verified 7 August 2026

Passrate

Not published by CTC. We do not publish CBEST pass rates.

How long scores last

Not published by CTC. The CTC CBEST test page and its retake-policy page state no expiry for a passing CBEST score. The only occurrence of “expire” on either is the testing site’s own session-timeout notice.Checked against: CTC Exams, CBEST retake policy, verified 7 August 2026

Always verify: scores, fees and retake rules come from the California Educator Credentialing Examinations program and change. Confirm current details at ctcexams.nesinc.com before you register for a section.

What our CBEST question bank covers

Scroll the table sideways to see every column.

What actually trips people up on the CBEST

Correlation presented as causation

Critical analysis and evaluation is approximately 40 percent of the Reading section, and the single most repeated item type gives you two things that happened together and asks what is wrong with the inference.

Sampling bias in an argument

Reading items give you a survey with an unrepresentative sample and ask what undermines it. The tempting wrong answers question sample size or missing detail rather than representativeness.

Square units in conversions

1 km is 1,000 m, but 1 km² is 1,000,000 m². Our geometry and measurement questions are built around candidates applying the linear factor to an area, and every distractor set contains that answer.

Range versus median versus mean

Range, median and mean get swapped under time pressure, and distractors deliberately include the median of the same data set. Estimation, measurement and statistical principles is the smallest of the three official Mathematics skill factors at approximately 30 percent, so these are cheap marks to protect.

Arithmetic sequences given two non-adjacent terms

Our patterns and algebra questions give the 5th and 12th terms and ask for the first. Subtracting to find 7d is the whole trick, and candidates who try to list the sequence instead lose time they need for the essays.

How long should you study for the CBEST?

Six weeks, section by section, because you register, pay and pass them separately. Remember the 45 calendar-day wait before retaking the same section, and that the highest score you obtain on each section, no matter when earned, is the one used.

Week 1 · Take your strongest section first

Whichever of Reading and Mathematics you are better at, book it. A score above 41 banked early gives you headroom toward the 123 total. Our CBEST bank is 1,304 questions: 398 reading comprehension, 266 critical analysis and 640 across the four math categories in our bank.

Weeks 2–3 · Mathematics category by category

Topic Drill number concepts, patterns and algebra, geometry and measurement, and statistics and probability separately. Unit conversion and measure-confusion errors are the cheapest marks to recover.

Weeks 4–5 · Reading, weighted toward critical analysis

Comprehension and research skills is approximately 60 percent of the section and critical analysis approximately 40 percent, but critical analysis is the one candidates lose. Drill fallacy identification and evidence evaluation.

Week 6 · Two essays under time

Writing is two essays in 90 minutes, 45 minutes each if you split evenly. Rehearse that split; running long on the first essay is the classic failure.

Is the CBEST hard?

The CBEST tests basic skills, not teaching skills, and the content sits well below degree level. Its difficulty is administrative as much as academic: three sections, registered and paid for separately at US$30 each, with a 45 calendar-day wait before you can retake any one of them. That turns a weak section into a two-month delay rather than an afternoon, which is why candidates who sit all three at once without preparing the weakest one regret it.

The scoring rule is worth understanding because it works in your favor. You need 41 per section and 123 in total, but a section below 41 can be carried by the other two as long as none falls below 37, and the highest score you obtain on each section, no matter when earned, is the one used. So retaking a section you already passed is a legitimate strategy. Our CBEST bank of 1,304 questions runs 147 at our easiest level and 795 at the top two, with 664 reading and critical analysis questions and 640 across the four math categories in our bank.

How the CBEST differs from the exams beside it

The CBEST’s scoring rule is unusual and it catches people out: you need a total of 123 across three sections scored 41 to pass, which is exactly 41 × 3, but you can also pass with a section below 41 if the other two carry you, provided no section drops below 37. That makes a strong section genuinely bankable. It also means retaking a section you already passed can be worth doing, because the highest score you obtain on each section, no matter when earned, is the one used to compute your total. Practically, that turns the CBEST into a portfolio you build over multiple sittings rather than a single pass-or-fail day: with a 45-calendar-day wait between attempts at the same section, and US$30 per attempt.

Questions people actually ask about the CBEST

What score do you need to pass the CBEST?

A scaled score of 41 on each of Reading, Mathematics and Writing, and a total of 123. You cannot pass with any section below 37, no matter how high the total is.

How many questions are on the CBEST?

50 multiple-choice questions in Reading, 50 in Mathematics, and 2 essays in Writing.

How long is the CBEST?

1 hour 30 minutes each for Reading and Writing, and 2 hours for Mathematics, plus 15 minutes for the nondisclosure agreement and tutorial. The sections are sat in separate sessions.

How much does the CBEST cost?

US$30 per section. Because you register for each section separately, the cost depends on how many sections you sit and how many times.

Can you take CBEST sections separately?

Yes, and you have to, the sections are administered in separate testing sessions and registered for individually. Many candidates clear one at a time.

How soon can you retake the CBEST, and is a section you passed worth retaking?

45 calendar days from the date you took it before retaking that test or subtest on computer. And sometimes yes: the highest score you obtain on each section, no matter when earned, is used to compute your total, so lifting a section you already passed can carry you over the 123 total when another section is weak.

Is the CBEST taken online or at a test center?

Either. It is offered as a computer-based test at a test center and as an online-proctored test you can sit remotely.

Are these real CBEST questions from the actual exam?

No. Reproducing live items would violate California Commission on Teacher Credentialing’s test security rules. These are original questions written to the same blueprint, format and difficulty as the real CBEST, each with the explanation we ship inside the app.