Class 9 Math Solutions (NCTB Curriculum)

Class 9 Mathematics Solutions Chapters 1 to 17 (NCTB Curriculum)

Class 9 maths Solutions offer detailed, easy to understand explanations of all the problems in the NCTB Mathematics textbook for Class 9, as per the Bangladesh national curriculum. These chapter-wise solutions are carefully prepared to help students grasp core concepts, apply mathematical techniques, and improve problem-solving accuracy.

Developed by experienced educators, these solutions follow the latest NCTB syllabus and are ideal for students preparing for:

• Class 9 school exams
• SSC (Secondary School Certificate) exams
• National math competitions like Olympiads

Since SSC exams are based directly on the NCTB textbooks, using these Class 9 mathematics solutions ensures alignment with the curriculum and prepares students effectively for Class 10 and board exams.

Chapter-wise NCTB Class 9 Math Solutions

NCTB Class 9 math Solutions covers all 17 chapters of the NCTB book from real numbers and algebra to trigonometry and statistics. Every chapter is explained in clear, accessible language, enabling students to master even the most complex concepts.

To succeed in mathematics, consistency is key. We recommend revisiting the chapter-wise solutions frequently to reinforce your learning and boost your exam performance. You can download the NCTB textbook below and begin your learning journey with confidence.

📥 Download NCTB Class 9 Math Book

Class 9 Maths Solutions Chapter 1 Real Numbers

NCTB Class 9 Maths Chapter 1 covers real numbers, helping students to identify natural numbers, integer numbers, rational and irrational numbers, as well as decimal fractions. Convert a real number to its decimal form. The solutions to this chapter also give students a good understanding of solving addition, subtraction, multiplication, and division operations on repeated decimal fractions.

Class 9 Maths Solutions Chapter 2 Sets and Functions

NCTB class 9 maths chapter 2 sets and functions help students to get a grasp on how to describe sets and subsets, proper subsets, and empty sets through symbols. Students learn about various types of sets like finite, infinite, power sets, and universal sets. Understand set operations such as union, intersection using symbols. Apply set theory rules, including the use of Venn diagrams to solve problems. Define and construct relations and functions, including determining their domain and range, and drawing diagrams for them.

Class 9 Maths Solutions Chapter 3 Algebraic Expressions

NCTB solutions for Class 9 Maths chapter 3 algebraic expressions help students expand the formulae of squares and cubes by applying standard algebraic identities, making it easier to simplify complex expressions. These solutions also provide a clear explanation of the factorization of algebraic expressions and resolve expressions into factors using the remainder theorem. Additionally, students learn how to form algebraic formulae to represent real-life situations and solve practical problems by applying the appropriate formulae. Each concept is broken down with step-by-step guidance so that learners can build a strong algebraic foundation for their school exams, SSC, and beyond.

Class 9 Maths Chapter 4 Exponents and Logarithms

NCTB Class 9 Maths solutions chapter 4 Exponents and Logarithms explains the laws of exponents, powers with negative and fractional indices, and how to convert between exponential and logarithmic forms. Easy explanations help students solve exponential equations and understand logarithmic formulas in practical contexts.

Class 9 Maths Chapter 5 Equations in One Variable

NCTB Class 9 Maths chapter 5 Equations in One Variable introduces students to forming and solving linear and quadratic equations. It explains the distinction between variables and constants through contextual problems. The solutions include equations with fractions and relatable applications. This chapter builds strong algebraic intuition using clear, structured methods aligned with NCTB guidelines.

Class 9 Maths Solution Chapter 6 Lines, Angles and Triangles

NCTB solutions class 9 math chapter 6 introduces basic geometry concepts, covering points, lines, surfaces, Euclid’s Postulates, plane geometry, types of angles, triangle properties, and angle sum rules. Additionally, students get a clear concept of different types of angles such as Adjacent angles, vertically opposite angles, linear pairs of angles, alternate angles, corresponding angles, parallel lines, and transversals. The solutions help students understand geometric theorems and proofs involving triangles and lines with easy-to-follow diagrams.

Class 9 Maths Solution Chapter 7 Practical Geometry

NCTB class 9 math solutions chapter 7 Practical Geometry, students practice constructing geometric figures such as angles, triangles, quadrilaterals, and bisectors using a compass and scale. The NCTB solutions guide students with clean illustrations and precise steps to improve their accuracy in geometric drawing.

Class 9 Maths Chapter 8 Circle

NCTB class 9 mathematics solutions chapter 8 Circle explains circle-related terms like radius, chord, arc, diameter, and tangent. Theorems involving angles in circles and equal chords are covered with detailed diagrams. These NCTB solutions help students visualize and solve problems with ease.

Class 9 Math Solution Chapter 8 Trigonometric Ratios

Class 9 maths solutions chapter 9 trigonometric ratios introduce students to sine, cosine, tangent, cotangent, secant, and cosecant values for different angles using right-angled triangles. Students learn to solve basic trigonometric problems using trigonometric formulas or identities. These solutions offer simple explanations and real-life examples to make trigonometry accessible.

Class 9 Maths Chapter 10 Distance and Elevation

Class nine maths solutions chapter 10 Distance and Elevation, students apply trigonometric ratios to calculate heights, angles of elevation, and depression. The solutions break down each problem step-by-step to improve spatial understanding and calculation skills.

Class 9 Maths Chapter 11 Algebraic Ratio and Proportion

NCTB solutions for class 9 maths chapter 11 focus on algebraic methods to solve ratio and proportion problems. Students learn how to form proportions from expressions and apply them in solving equations. These solutions provide clear illustrations of real-world mathematical problems.

Class 9 Maths Chapter 12 Simple Simultaneous Equations in Two Variables

NCTB class 9 mathematics chapter 12 Simple Simultaneous Equations in Two Variables introduces students to solving pairs of linear equations using substitution, elimination, cross multiplication, and the graphical method. These solutions guide students through the logic of simultaneous equations with worked examples and practical uses.

Class 9 Maths Chapter 13 Finite Series

Class nine mathematics solutions chapter 13 Finite Series builds a foundation for students to explore arithmetic and geometric sequence and series or progressions, their formulas, and applications. The solutions demonstrate how to calculate terms and sums in sequences using clear step-by-step methods, helping learners spot patterns in numbers.

Class 9 Maths Chapter 14 Ratio, Similarity and Symmetry

Class 9 math solutions chapter 14 provides an idea of mathematical similarities and symmetrical figures, including how ratios define proportions in geometry. The solutions provide insight into scaling figures, mirror symmetry, and how these principles appear in art, design, and nature.

NCTB Math Class 9 Chapter 15 Area Related Theorems and Constructions

Class 9 Chapter 15 combines geometry and measurement, covering theorems related to the area of triangles and quadrilaterals, and constructions based on area properties. These solutions make geometry hands-on and logical with supporting figures and justifications.

Class 9 Maths Chapter 16 Mensuration

Class 9 maths solutions chapter 16 Mensuration introduces students to measure and calculate the area and volume of geometric shapes like triangles, quadrilaterals, Rectangular solid, and cylinders. The solutions provide exact formulas and sample problems to help learners master real-world measurement tasks. The concepts and formulas in this chapter are essential, as they lay the foundation for advanced topics in higher education.

Class 9 Maths Chapter 17 Statistics

Class 9 maths solutions 17 Statistics teaches students how to organize and interpret data using charts, tables, and graphs. Calculating mean, median, and mode is made easy with examples and real-life datasets. These solutions support to development of data literacy and exam preparation.

Online MCQ Exams for Class 9 Mathematics (NCTB Curriculum)

Test your progress in Class 9 Maths with our detailed chapter-wise solutions — but it’s equally important to check how well you’ve understood the concepts. To support your preparation for school exams, SSC exams, and competitive tests, we’ve created MCQ-based online exams for each chapter, aligned with the NCTB Class 9 Mathematics curriculum. These interactive live tests are carefully designed to cover key formulas, problem-solving strategies, and common question patterns. Whether you’re a student in Bangladesh, India, or studying from abroad, these Class 9 Math multiple-choice tests offer a fast and effective way to increase your speed, accuracy, and exam confidence.

Conclusion

Looking for accurate and student-friendly Class 9 Maths Solutions? Our chapter-wise NCTB Class 9 Mathematics Solutions provide easy explanations and solved exercises aligned with the latest curriculum in Bangladesh. Whether you’re studying for SSC exams, school assessments, or competitive tests, these math solutions help you build a strong foundation.

FAQs on Solutions for Class 9 Maths