Subjects
Mathematics practice, free.
Algebra, calculus, geometry, statistics and arithmetic from school and entrance exams. Every question has an explanation, and the tests are timed like the real thing.
- 200questions
- 16topics
- 2exams covered
- Freeno plans or paywalls
Mathematics in China
Practise mathematics with the exams you can take in China.
Where do you want to start?
- 82 questions · 7 topicsAlgebraEquations, functions, sequences and the manipulation skills every other topic depends on.Linear equations in one variable · Systems of linear equations · Algebra
- 55 questions · 4 topicsArithmetic and numberPercentages, ratios, interest, speed and time: the quantitative aptitude toolkit.Percentages and percent change · Arithmetic and percents · Ratios, rates and proportions
- 38 questions · 3 topicsStatistics and probabilityData, averages, counting methods and probability.Statistics and probability · Arithmetic, Algebra, Geometry and Counting (Set 3) · Data analysis
- 25 questions · 2 topicsGeometry and trigonometryCoordinate geometry, lines and circles, vectors and trigonometry.Geometry and trigonometry · Lines and slope
The most practised topics.
Each topic has its own list of questions with explanations. Pick the exam you are preparing for.
Percentages and percent change
18 questions across 1 exam
Geometry and trigonometry
18 questions across 1 exam
Statistics and probability
17 questions across 1 exam
Arithmetic and percents
15 questions across 1 exam
Linear equations in one variable
14 questions across 1 exam
Systems of linear equations
14 questions across 1 exam
Algebra
14 questions across 1 exam
Arithmetic, Algebra, Geometry and Counting (Set 3)
14 questions across 1 exam
Real questions, worked answers.
- Percentages and percent change · SATWhat is 20 % of 150?See the answer and explanation →
- Geometry and trigonometry · SATA right triangle has legs of length 6 and 8. What is the length of its hypotenuse?See the answer and explanation →
- Statistics and probability · SATThe mean of five numbers is 18. Four of the numbers are 24, 13, 13, 21. What is the fifth number?See the answer and explanation →
Practise it for real.
How to practise mathematics.
- 1
Start with the topic you avoid
The topic you keep skipping is where the quickest marks are. Do one short set on it before anything else.
- 2
Try it before you read the explanation
Struggling for two minutes teaches more than reading a finished solution. Then compare your steps with ours.
- 3
Learn untimed, then add the clock
Get the method right first. Move to a timed mock test once a topic feels steady.
- 4
Keep a list of your mistakes
Write down why each answer was wrong: a sign slip, a formula you forgot, a misread question. The list shows what to fix.
- 5
Come back after a week
Repeat the questions you got wrong after a few days. That is when a method either sticks or fades.
Questions, answered.
- Is the maths practice really free?
- Yes. Every question, explanation, mock test and flashcard deck is free, with no plans or paywalls.
- Which exams does it cover?
- Maths questions from SAT, GRE. There are 200 maths questions on this page's list today.
- Does every question have an explanation?
- Yes. Each question has an explanation with the working or the key idea, and you can open any question on its own page.
- Can I take a timed test?
- Yes. The mock tests below run on a real timer and show a full review with explanations at the end.