CBSE Exam Paper

NCERT Class 8 Maths Chapter 3 A Story of Numbers Solutions Question Answer Ganita Prakash Class 8 Chapter 3 Solutions A Story of Numbers NCERT Class 8 Maths Ganita Prakash Chapter 3 A Story of Numbers Solutions Question Answer Story of Numbers 3.1 Reema’s Curiosity Figure It Out (Page 54) Question 1. Suppose you are using the number system that uses sticks to represent numbers, as in Method 1. Without using either the number names or the numerals of the Hindu number system, give a method for adding, subtracting, multiplying, and dividing two numbers or two collections of sticks. Solution : Suppose there are two groups of sheep. The first group has 6 sheep and the second has 4 sheep. We have counted using pebbles. To add, put all pebbles in the same pouch. To subtract, take out as many pebbles as in the pouch having fewer pebbles from the pouch having more pebbles. Now, suppose we wish to know how many sheep will be twice the number in the first group. For this, we count twice using pe...

Ganit Prakash | Class 8 | Maths | Notes | Ch 3 A Story of Numbers Class 8 Maths Notes Chapter 3 – Class 8 A Story of Numbers Notes → To represent numbers, we need a standard sequence of objects, names, or written symbols that have a fixed order. This standard sequence is called a number system. → The symbols representing numbers in a written number system are called numerals. → In a number system, landmark numbers are numbers that are easily recognisable and used as reference points for understanding and working with other numbers. They serve as anchors within the number system, helping people to orient themselves and make sense of quantities, particularly larger ones. → A number system whose landmark numbers are the powers of a number n is referred to as a base-n number system. → Number systems having a base that make use of the position of a symbol in determining the landmark number that it is associated with are called positional number systems or place value systems. → Place value ...