Mathematics

This chapter deals with the number system. It discusses about place value, natural number, whole number, composite number, odd number, even number, idea of divisibility, Euclid’s division algorithm, etc.

This chapter explains the concept of HCF and LCM. It further lists down the procedure to obtain highest common factor and lowest common multiple. Exercises with answers are provided here.

This chapter deals with square roots and cube roots. It explains in detail some perfect square roots, methods of finding square root, some perfect cube roots, and methods of finding cube root.

This chapter explains the concept of percentage. It also explains conversion techniques. Multiple choice questions are provided here for practice.

This chapter discusses about the average of a group of numbers or quantities. It includes the definition of average, some basic formulas, and average of age.

This chapter discusses about simple interest. It gives the definition of simple interest and formulas related to simple interest. Exercises with answers are provided for practice.

This chapter the concept of compound interest. It explains in detail the compound interest with its definition and formulas. MCQs are provided for practice.

The chapter discusses about profit and loss. It explains the concept of cost price, selling price, and market price.

The chapter explains the concept of discount. Definitions and important formulas are provided. Multiple choice questions with answers are given here.

This chapter discusses about partnership. It gives the definition of partnership and explains ratio of division of gains. Exercises with solutions are given here for practice.

This chapter deals with ratio and proportion. Multiple choice questions are provided here for practice.

This chapter explains the concept of time and work. It gives definition and formulas of time and work. Questions with solutions are provided for practice.

This chapter deals with time and distance. It gives the definition of speed and formulas related to speed, time, velocity, and distance. Multiple choice questions with solutions are provided here.

This chapter explains about fraction and decimal. It discusses in detail the decimal fraction, conversion of decimal into vulgar fraction, annexing zeros and removing decimal signs, operations on decimal fractions, etc.

The chapter discusses about cisterns and pipes. It gives the definitions and formulas of cisterns and pipes.

This chapter discusses about statistics. It explains gives the formulas of mean, median and mode. Multiple choice questions are given for practice.

This chapter discusses the theory of equation. It explains in detail the linear equation and quadratic equations. Multiple choice questions are provided here for practice.

The chapter discusses about mensuration. It explains in detail about perimeter, area and volume and surface area of cuboid, cube, cylinder, sphere, hemisphere, hollow sphere, and cone.