December 2026 SAT Prep: 3 Free Practice Questions

Try three SAT practice questions

Set a four-minute timer if you want to practice under time pressure. Write each answer down, star any guesses and open the worked answers after you try all three.

1. Systems of equations

At the start of an experiment, tank R holds 15 gallons of water and tank S holds 6 gallons. Starting at the same time, water flows into R at 0.75 gallons per minute and into S at 1.2 gallons per minute. How many gallons are in each tank at the moment they contain equal volumes?

1. 20
2. 24
3. 30
4. 39

Worked answer for question 1

C. 30 gallons. Tank S closes the initial 9-gallon gap at 1.2 − 0.75 = 0.45 gallon per minute. The volumes match after 9 ÷ 0.45 = 20 minutes. At that time, tank R holds 15 + 0.75 × 20 = 30 gallons and tank S holds 6 + 1.2 × 20 = 30 gallons. If you chose 20, check the units. The question asks for gallons.

2. Subject-verb agreement

In a school robotics lab, the instructions for the calibration routine [blank] one diagram for each measuring tool.

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

1. includes
2. is including
3. has included
4. include

Worked answer for question 2

D. include. The subject is the plural noun instructions. The phrase for the calibration routine describes the instructions. Read the sentence without that phrase. “The instructions include one diagram.” The other choices all use verbs that would agree with a singular subject.

3. Inferences

Visitors at a science center were randomly assigned one of two versions of a floor map. Both versions listed the same room names and used the same colors. Only the second version showed arrows marking an accessible route to each room. Visitors with that map located the step-free entrance more often.

Which conclusion is most strongly supported by the text?

1. Adding route arrows may help visitors locate the step-free entrance.
2. Room names helped visitors identify accessible routes more than arrows did.
3. Visitors with the first map preferred a visit without directions.
4. Arrows would lead every visitor to every desired room.

Worked answer for question 3

A. Adding route arrows may help visitors locate the step-free entrance. Both maps used the same room names. The map with arrows led to a higher success rate for finding the entrance. The study did not measure what visitors preferred or whether everyone found every room.

Invite a study partner

Want to do 12 minutes of SAT practice together? Take 4 minutes to try these three questions on your own. Use the next 8 minutes to compare one solution and check the worked answers together. https://www.peaksat.com/blog/december-sat-practice-kickoff?campaign=december-peer-warmup-2026#try-three-sat-practice-questions

Spend five minutes on your next question

Pick the first skill you missed, guessed on or took longest to answer. Work one fresh question for up to three minutes. Spend the last two minutes checking your work and writing one step to remember next time.

• Systems of equations. Label the unknown with its units and check your result in both equations.
• Subject-verb agreement. Cross out the words between the subject and the verb, then read them together.
• Inferences. Underline the evidence for your choice and check how certain the claim is.

Put three practice sessions on your calendar

Schedule three short sessions before your test. Try two fresh questions, redo one mistake the next day, then check the same skill on another question without notes. Use the free SAT study plan generator to make a calendar. Before test day, the planner offers a December 5 preset. For grammar practice, keep your subject-verb agreement questions handy when you schedule the session.

If you need a baseline score, take an unused full-length Bluebook practice test (opens in a new tab). This three-question set serves as a quick way to choose what to practice next.

Check the December SAT deadlines

The SAT is Saturday, December 5, 2026. College Board lists November 20 as the regular registration deadline and November 24 as the late registration deadline. Both deadlines are at 11:59 p.m. U.S. Eastern time, and a late fee may apply. Check your registration and test center with College Board (opens in a new tab). If you took the November SAT, use this retake checklist when your scores arrive.