Read the passage: Many school districts have moved to later start times for teenagers. Sleep researchers note that adolescents' body clocks shift later during puberty, so a 7:30 a.m. bell can ask a student to wake at a time that feels like the middle of the night. Districts that moved their first bell back by an hour reported fewer late arrivals, though some had to rework bus routes and after-school sports. Which statement best expresses the main idea?
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About this test
This free CBEST practice test has 15 questions written by the StudyPDF team, five each in reading, math and writing. The real California CBEST has 50 reading questions, 50 math questions and two essays, so this is a sampler to show you where you stand, not a full-length exam. The writing questions check standard written English and focus, because an essay cannot be scored in a browser quiz. Answer all 15, then read the explanation for every question.
All 15 questions at a glance
Prefer to read before you play? Every question in the sampler is listed below. Answers and explanations stay collapsed until you open them.
1.Read the passage: Many school districts have moved to later start times for teenagers. Sleep researchers note that adolescents' body clocks shift later during puberty, so a 7:30 a.m. bell can ask a student to wake at a time that feels like the middle of the night. Districts that moved their first bell back by an hour reported fewer late arrivals, though some had to rework bus routes and after-school sports. Which statement best expresses the main idea?
- A. Schools should end after-school sports to save money.
- B. Bus routes are the main reason districts avoid change.
- C. Teenagers need less sleep than younger children.
- D. Later start times fit teenagers' sleep patterns and brought benefits, though they require schedule changes.
Answer: D. Later start times fit teenagers' sleep patterns and brought benefits, though they require schedule changes.
A main idea has to cover the whole passage: why teenagers struggle with early bells, what districts saw after the change, and the cost in schedules. The first choice and the third are never claimed, and the second takes one side detail and treats it as the whole point. When you check a main idea, ask whether it leaves out a big part of the passage or adds something the writer never says.
2.Read the directions: Sand the surface, then wipe off the dust with a damp cloth. Apply one coat of primer and let it dry for two hours. Paint the first coat only after the primer is dry, and add a second coat the next day. According to the directions, what should you do right after applying the primer?
- A. Sand the surface again
- B. Wipe the surface with a damp cloth
- C. Wait two hours for the primer to dry
- D. Apply a second coat of paint
Answer: C. Wait two hours for the primer to dry
The directions put the steps in order: sand, wipe, prime, wait, paint, then a second coat the next day. Right after the primer comes the two-hour wait. Sanding and wiping come before the primer, and the second coat is the last step, a day later. For sequence questions, number the steps in the margin as you read and look for time words like then, after and the next day.
3.Read the passage: A town is considering a parking fee at its beach to pay for lifeguards. Opponents say the fee will keep lower-income families away. Which statements would strengthen the opponents' claim? Select all that apply.
Select all that apply.
- A. A survey found that most households earning under $30,000 reach the beach on foot because they have no car.
- B. In a nearby town, beach visits by families in the free-lunch program fell by a third after a parking fee began.
- C. The proposed fee is about the price of a movie ticket.
- D. Several lower-income residents told the council they would stop visiting if the fee were charged.
- E. In some towns, lifeguards are paid partly from parking fees.
Answer: B. In a nearby town, beach visits by families in the free-lunch program fell by a third after a parking fee began., D. Several lower-income residents told the council they would stop visiting if the fee were charged.
A statement strengthens the claim only if it makes it more likely that the fee would keep lower-income families away. A similar town losing visits and residents saying they would stay home both do that. The first statement actually weakens the claim, since people who walk would not pay a parking fee at all. The movie ticket comparison is an argument for the fee, and the lifeguard funding fact says nothing about who would visit.
4.A school posts this table. Club: Chess, 18 members, 4 meetings a month. Robotics, 25 members, 6 meetings. Drama, 31 members, 2 meetings. Garden, 12 members, 4 meetings. Which conclusion is supported by the table?
- A. Robotics has more members than any other club.
- B. The club with the most members meets the fewest times a month.
- C. Chess and Garden together have as many members as Drama.
- D. Garden meets more often than Chess.
Answer: B. The club with the most members meets the fewest times a month.
Drama has the most members at 31 and the fewest meetings at 2. Robotics has 25 members, fewer than Drama. Chess and Garden add up to 18 + 12 = 30, which is one short of 31, and both clubs meet 4 times a month, so neither meets more often. On table questions, test every number a choice mentions before you pick it.
5.Read the sentence: Although two earlier prototypes had failed, the engineer remained sanguine about the third attempt, pointing to the improved test results. As used in the sentence, sanguine most nearly means
- A. optimistic
- B. doubtful
- C. indifferent
- D. embarrassed
Answer: A. optimistic
The clues are although and pointing to the improved test results. The sentence sets two failures against hope, and the engineer cites good evidence, so the word has to mean confident or hopeful. Doubtful would repeat the failures instead of contrasting with them, and nothing suggests indifference or embarrassment. Use the clues in the sentence rather than what you already think the word means.
6.A tutor charges a $15 materials fee plus $12 for each hour of tutoring. A parent paid $63 in all. For how many hours was the tutor paid?
- A. 3
- B. 4
- C. 5
- D. 6
Answer: B. 4
Write the setup first: 12h + 15 = 63. Subtract the fee, 63 - 15 = 48, then divide by 12 to get 4 hours. You can check it by working forward: 4 hours at $12 is $48, and $48 plus $15 is $63. Checking by working forward takes ten seconds and catches most slips.
7.A recipe uses 3/4 cup of milk for each batch. How much milk is needed for 6 batches?
- A. 3 1/2 cups
- B. 4 cups
- C. 4 1/2 cups
- D. 6 3/4 cups
Answer: C. 4 1/2 cups
Multiply the amount per batch by the number of batches: 6 x 3/4 = 18/4, which is 4 1/2. A quick check by estimation: 3/4 is a little less than 1, so 6 batches should need a little less than 6 cups, and 4 1/2 fits. The choice 6 3/4 comes from adding 6 and 3/4 instead of multiplying.
8.Which of these are equal to 3/8? Select all that apply.
Select all that apply.
- A. 0.375
- B. 37.5%
- C. 6/16
- D. 3/5
- E. 0.38
Answer: A. 0.375, B. 37.5%, C. 6/16
Divide 3 by 8 and you get 0.375, and moving the decimal two places gives 37.5 percent. Doubling the top and bottom of 3/8 gives 6/16. The fraction 3/5 equals 0.6, and 0.38 is close to 0.375 but not equal to it. Without a calculator, remember that 1/8 is 0.125, so 3/8 is 3 times that.
9.Complete the sentence.
Five students scored 70, 85, 90, 75 and 95 on a quiz. The mean score is _____ and the median score is _____.
Options for blank 1: 80, 83, 85, 90
Options for blank 2: 80, 83, 85, 90
Answer: 83, 85
The scores add up to 70 + 85 + 90 + 75 + 95 = 415, and 415 divided by 5 is 83, the mean. For the median, put the scores in order, 70, 75, 85, 90, 95, and take the middle one, which is 85. The mean uses every value, so one low score pulls it below the median here, while the median only cares about position.
10.A bag holds 3 red marbles, 4 blue marbles and 3 green marbles. One marble is drawn without looking. What is the probability that it is not blue?
- A. 2/5
- B. 1/2
- C. 7/10
- D. 3/5
Answer: D. 3/5
There are 3 + 4 + 3 = 10 marbles in all, and 4 of them are blue, so 6 are not blue. The probability is 6/10, which simplifies to 3/5. A shortcut: the chance of not blue is 1 minus the chance of blue, 1 - 4/10 = 6/10. The choice 7/10 comes from subtracting only the 3 red marbles.
11.Which sentence uses parallel structure correctly?
- A. The new hire learns to file records, to answer phones and to greet visitors.
- B. The new hire learns to file records, answering phones, and to greet visitors.
- C. The new hire learns filing records, answers phones, and greeting visitors.
- D. The new hire learns to file records, answer phones and greeting visitors.
Answer: A. The new hire learns to file records, to answer phones and to greet visitors.
Items in a list should have the same grammatical form. The first choice repeats to plus a verb three times, so it is parallel. The other three mix forms, such as to file, answering and to greet, or filing, answers and greeting. When you check a list, say each item with the same lead-in words and see whether every item still fits.
12.Choose the correct word for each blank.
Neither the principal nor the teachers _____ aware of the change, and the stack of graded essays _____ still on my desk.
Options for blank 1: was, were, is, has been
Options for blank 2: were, was, are, have been
Answer: were, was
With neither and nor, the verb agrees with the subject closest to it. Teachers is plural, so the first blank takes were. In the second part, the subject is stack, not essays, and stack is singular, so it takes was. Ignore the words between the subject and the verb: of graded essays is only a description of the stack.
13.Choose the best transition.
Our first draft listed every fact we found. _____, the final version includes only the three facts that support the thesis.
Options for blank 1: For example, In contrast, Similarly, Therefore
Answer: In contrast
The second sentence describes the opposite approach to the first: all of the facts against just three. In contrast signals that turn. For example would need the second sentence to illustrate the first, similarly would need it to match, and therefore would need the first to be the reason for the second, which it is not. Read the two sentences and name the relationship before you look at the choices.
14.Which of these are complete sentences, not fragments? Select all that apply.
Select all that apply.
- A. Because the bus was late.
- B. The students waited outside until the bell rang.
- C. Running to catch the train before it left.
- D. After the assembly, the principal thanked the volunteers.
- E. Stay behind after class.
Answer: B. The students waited outside until the bell rang., D. After the assembly, the principal thanked the volunteers., E. Stay behind after class.
A complete sentence has a subject and a verb and expresses a complete thought. The second and fourth have both, and the last is a command whose subject, you, is understood. Because the bus was late leaves the reader waiting for what happened, and Running to catch the train has no subject or main verb. A word like because at the start of a clause is a warning sign that the thought may be unfinished.
15.Which sentence works best as the thesis of a short essay arguing that every school should schedule a daily recess?
- A. Recess is something that schools have.
- B. Many people have different opinions about recess.
- C. Daily recess helps students concentrate, stay active and get along better, so every school should schedule it.
- D. I am going to write about recess.
Answer: C. Daily recess helps students concentrate, stay active and get along better, so every school should schedule it.
A thesis states a position and previews the reasons, so a reader knows what the essay will argue. The third choice does both: it says what schools should do and gives three reasons to support it. The first and second say nothing a reader could agree or disagree with, and the fourth announces a topic instead of making a claim. Essay graders look for exactly this kind of focus.
What the CBEST covers and where it stands today
The California Basic Educational Skills Test, or CBEST, measures reading, math and writing skills for educators in California. According to the California Commission on Teacher Credentialing (CTC), it has three sections that you register for and sit separately: Reading with 50 multiple-choice questions in 1 hour and 30 minutes, Mathematics with 50 multiple-choice questions in 2 hours, and Writing with two essays in 1 hour and 30 minutes. Everything is in English, and calculators are not allowed. You can test at a test center or with an online proctor.
Before you book anything, check whether you need it. The CTC's own CBEST page says the CBEST is no longer required for most teaching credentials if you have a bachelor's degree, and its Basic Skills Requirement leaflet, CL-667, lists the ways to meet the requirement. Passing the CBEST is one of them, and approved college coursework and some other exams are others. A program or an employer can still ask for it, so confirm what yours wants.
The CTC sets the passing score and the rules for how section scores count, and these have changed over the years, so this page does not quote them. Read the scores part of the CTC's CBEST page before you register. The content comes from the CTC's published test specifications. Reading covers main ideas, inferences, facts versus opinions, how strong an argument is, and tables and graphs. Math covers fractions, decimals and percents, one-unknown equations, averages, probability, estimation and graphs. Writing covers clarity, focus, support and standard written English. The two essays are one about a remembered experience and one that explains or analyzes an idea.
How to practice reading, math and writing
Start with pace, because the real test is tighter than it looks. The reading section gives you about 1.8 minutes per question, and the math section about 2.4 minutes per question, with no calculator. Writing gives you 90 minutes for two essays, so plan on roughly 45 minutes each.
Reading. Decide what the question asks before you reread the passage, and answer only from the text. A main idea has to cover the whole passage, not one detail. For fact versus opinion, look for words like best, most beautiful or should. For questions about an argument, ask whether a new fact makes the claim more likely or less likely to be true. For tables, test every number a choice mentions before you pick it.
Math. Practice by hand. Write the setup before you calculate, estimate the size of the answer first, and convert between fractions, decimals and percents until it is automatic: 3/8 is 0.375 and 37.5 percent. Know the difference between the mean and the median, and check units. Because the questions are multiple choice, a quick estimate often removes two choices.
Writing. The five writing questions here check what the essay graders also look for: sentences that are clear, focused and in standard written English. Learn the usual errors, which are comma splices, run-ons, subject and verb agreement, pronoun case and weak transitions. This page cannot score an essay. For that, write one from the CTC's published prompts under a timer, plan for five minutes, state your position in the first paragraph, give each body paragraph one reason with one example, and keep a few minutes to reread.
An honest note: the StudyPDF team wrote every question here from the CTC's published CBEST test specifications. None of them are real CBEST items, none come from a prep company's bank, and StudyPDF is not affiliated with the CTC, Pearson or NES. The CTC publishes its own practice test for each section on its exam site, if you want questions from the test maker.
How to build more practice tests from your own materials
Fifteen questions can show you which section needs the most work. They cannot get you ready on their own, especially if your program gave you its own packet or your prep book leans on one area.
StudyPDF works from your material instead. Upload your study guide, a prep book, your class notes or the packet your program gave you. Then press New material, pick a practice test, choose those files as the sources and set how long it should be. You get a test written from those exact pages, and every explanation cites where the answer comes from. Run one on a single area, such as fractions and percents or comma splices, and repeat it after you review.
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You do not have to upload anything to start. Name a topic instead, for example inference questions or percent change, and you get practice questions on it. A free account is enough to start, and Free covers about four new materials a week, with Pro and Ultra covering more.
Written by the StudyPDF team. Last updated August 19, 2026.
Good to know
Is the CBEST still required in California?
It depends on your credential and your route. The CTC's CBEST page says it is no longer required for most teaching credentials if you have a bachelor's degree, and the Basic Skills Requirement leaflet, CL-667, lists the ways to meet the requirement. A program or an employer can still ask for it, so check with yours before you register.
How many questions are on the real CBEST?
According to the CTC, Reading has 50 multiple-choice questions, Mathematics has 50, and Writing is two essays. This page is a 15-question sampler, five each in reading, math and writing. Check the CTC page for the current format and the time limit of each section.
Can I use a calculator on the CBEST?
No. The CTC says calculators are prohibited, so the math questions here are written to be done by hand. Practice that way, with fractions, decimals and percents, and estimate before you calculate.
Who wrote these questions, and what about the passing score?
The StudyPDF team wrote every question and explanation from the CTC's published test specifications. They are not real CBEST questions, and StudyPDF is not affiliated with the CTC, Pearson or NES. The passing score and how sections combine are set by the CTC and can change, so this page does not state them and does not score essays.
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