Concise Mathematics Class 6 ICSE Solutions for Chapter 3 - Numbers in India and International System (With Comparison)

The Numbers in India and International System teaches about the decimal place value. The decimal system is the most commonly used number system in mathematics and science. Numbers that are based on decimal place value include billions, trillions, and so forth. We use ten digits to write numbers in decimal form, whereas in our day-to-day life, we use only ten numerals 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.

Numbers based on decimal place value (for example, 1,234) can be classified as follows:

• Whole numbers include 0 to 9 only. For example 10, 20, 30... 900 etc.

• Fractions or rational numbers may or may not have a decimal point and terminate or repeat infinitely. For example: 25/4 = 6.25 repeating, 1/2 = 0.5 terminating, 1/3 = 0.33 repeating etc.

• Decimals may or may not have a decimal point and also terminate or repeat infinitely. For example: 1 repeating, .75 terminating, .25 repeating etc.

Numbers can be written in many ways. For example, 657 could be written as 657000; 657000000 or 65700000 (in the international system), or 567000000 (in the Indian system). Numbers like 50400.00, 600203.20 are examples of numbers with exponents.

Numbers in the International System:

The International System (International Numerals or Arabic numbers) consists of numerals: 0, 1, 2, 3, 4 , 5 , 6 , 7 and 8 . The numerals may be written as digits or words. The numerals are written in descending order of significance, starting with the largest digit. Vedantu Solutions is providing quality content for preparing for ICSE 2024-25. Solutions are written according to the latest syllabus of all boards, including ICSE.

Numbers in Indian System:

The numbers used in India are known as Hindu-Arabic numerals or Indo-European numerals. These numerals are written from left to right in the order of decreasing significance. Vedantu Solutions provides a complete solution for all CBSE Boards. These solutions are provided in a step by step method to help you understand better.

Numbers can be formed using nine digits 0,1,2,3,... ,9 and decimal fractions like .5,.25,.75 etc. The word decimal comes from the Latin word Decem which means ten. The decimal system uses ten symbols to represent all numbers. For example, in the world of mathematics or science, four-point five (4.5) is written as 4.5, whereas in day-to-day life, we write it down as 045,045 etc.

The updated solutions for Selina textbooks are created in accordance with the latest syllabus. These are provided by Vedantu in a chapter-wise manner to help the students get a thorough knowledge of all the fundamentals.