Revise your knowledge of percentages. Here you will find exercises on determining percentages (%), calculating the percentage of a number, percentage increases and decreases and calculating initial capital after a percentage increase or decrease. Provides problems, explanations, and solutions.

Revise your understanding of fractions. Here you will find exercises about equivalent fractions, simplifying (reducing) fractions, reducing to the Least Common Denominator, Comparing fractions. Add, Subtract, Multiply and divide fractions. Solve exercises about mixed operations. Provides problems, explanations, and solutions.

Revise your understanding of linear equations, equations with parentheses, equations with fractions, radical equations,... Provides problems, explanations, and solutions.

Revise your understanding of geometric shapes and polygons. Here you will find definitions about almost all figures and polygons and exercises to calculate the area of different types of geometric shapes. Provides problems, explanations, and solutions.

Solve systems of equations by substitution, elimination, graphing,...
You can also solve system of equations using matrices (using the augmented matrix or the inverse matrix method). Have fun while solving word problems using system of equations. Provides problems, explanations, and solutions.

Welcome to our new statistic section. Get ready to have a fun practicing the most important topics in statistics. Calculate the mean, mode and median of a set of data. Find the quartiles, deciles and percentiles of a set of data (include formulae for grouped data). Provides problems, explanations, and solutions. Central Tendency and Dispersion measures are introduced.

Revise your understanding of arithmetic and geometric sequences and series. Provides problems, explanations, and solutions.

Revise your understanding of exponents and powers. Here you will find activities to cover the basic exponent rules. Provides problems, explanations, and solutions.

Solve right angled triangles by using the Pythagorean Theorem. Solve real life word problems using the Pythagorean Theorem. Use Pythagorean Triples to save your time on any test. Find the relationships between the sides of a 45-45-90 triangle or a 30-30-60 triangle. There are many applications for the Pythagorean Theorem: it can be used to find the distance between two points, to find the length of a space diagonal,... Provides problems, explanations, and solutions.

Find the distance between two points in the plane. Find the distance from a point to a line or the distance between two lines in the plane. Provides problems, explanations, and solutions.

Revise your understanding of quadratic equations. Solve complete and incomplete quadratic equations. Solve problems about real life using quadratic equations. Provides problems, explanations, and solutions.

Revise your understanding of variations, permutations and combinations. Solve exercises about variations, permutations and combinations with and without repetition. Provides problems, explanations, and solutions.

Revise your understanding of matrices. Solve exercises about addition, subtraction and multiplication of matrices. Provides problems, explanations, and solutions.

Revise your understanding of factorials. Enter any number you want and the computer will calculate its factorial for you. Provides problems, explanations, and solutions.

Revise your understanding of the inner product of two vectors. Solve exercises about inner product: calculate the value of the inner product of two vectors. Provides problems, explanations, and solutions.

Revise your understanding of trigonometry. Calculate the trigonometric functions of acute angles and improve your knowledge about trigonometry calculating the trigonometric functions of related angles: complementary angles, supplementary and opposite angles. Solve right triangles using trigonometry and solve all triangles using the law of sines and the law of cosines. Provides problems, explanations, and solutions.

Revise your understanding of polygons. Revise regular polygons, concave and convexe polygons. Find congruent polygons. Find ther vertices, diagonals and perimeters of any polygon. Provides problems, explanations, and solutions.