- Added new subtopics in "Natural numbers" topic:
-- Simplifying powers of natural numbers I
-- Simplifying powers of natural numbers II
- Added new subtopics in "Integer numbers" topic:
-- Simplifying powers of integers numbers I. Positive exponents
-- Simplifying powers of integers numbers II. Negative exponents
- Added new subtopics in "Rational numbers" topic:
-- Multiplication and division with fractions
-- Simplifying powers of integers numbers II. Negative exponents
-- Simplifying powers of rational numbers I
-- Simplifying powers of rational numbers II
- Added new subtopics in "Powers and roots" topic:
-- Simplifying powers of integers numbers I. Positive exponents
-- Simplifying powers of integers numbers II. Negative exponents
- Added new topic "Proportions and percentages"
- Added new subtopics in "Proportions and percentages" topic:
-- Finding an unknown quantity in a proportion
- Added new topics:
-- "Polynomials"
-- "Algebraic fractions"
- Added new subtopics in "Polynomials" topic:
-- Square binomials and difference of two squares
- Added 5 new equations in "Logarithmic equations" subtopic. ("Exponentials and logarithms" and "Equations. Other types" topics).
- Added new subtopics in "Equations. Other types" topic:
-- Equations involving roots (2 square roots)
-- Trigonometric equations
- Added new topics:
-- Basic geometry I. Plane shapes
-- Basic geometry II. Solid shapes
- Added new subtopics in "Basic geometry I. Plane shapes" topic:
-- Similarity I. Ratios of lengths
-- Similarity II. Ratios of areas
- Added new topic "Conic sections"
- Added new subtopics in "Descriptive statistics" topic:
-- One-variable statistics: Ungrouped data (I)
-- One-variable statistics: Grouped data (I)
-- One-variable statistics: Grouped data (II)