MathsWhole NumbersNatural NumbersWhole Numbers – Natural Numbers

Whole Numbers – Natural Numbers

Table of Contents

  • Natural Numbers Definition

– Largest Natural Number

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    • Successor and Predecessor
    • Summary
    • What’s Next?

    In the first segment of the chapter Whole numbers, we will learn about the basic type of numbers, known as Natural numbers.

    What are Natural numbers?

    Natural numbers are the numbers which are used to count something. They are called so because they come naturally to us when we are counting, hence they are also known as Counting numbers.

    Natural numbers start from number 1 and go on and on. We count them as 1, 2, 3, 4, 5, 6, 7,

    ….

    What is the largest natural number?

    There is no largest natural number. To understand this, let us take a few examples:

    Can we count the number of students in a class?

    Yes, we can.

    Can we count the numbers of students in a school?

    Yes. We just need to count the number of students in each class and add them. The total number of students in the school will be greater than the number of students in a class.

    Can we count the number of people in a city?

    Although a lot of extra help will be needed, it is possible to count the number of people in the city. The number of people in the city will be greater than the number of students in a school.

    Can we count the number of people in a country? Or the number of people on the planet? Or the number of people in the next 10 years?

    As we try to count these numbers, they keep on increasing. Thus we can conclude that there is no largest natural number.

    What are Successor and Predecessor numbers?

    Whenever 1 is added to any number, the new number is called the Successor of that number.

    Whenever 1 is subtracted from any number, the new number is called the Predecessor of that number.

    For example, there are 7 people standing in a line.

    When one more person joins the line, the total number of people becomes 8. Here, 1 is added to 7 and we get 8. So, 8 is the successor of 7.

    If one person leaves the line, there are 6 people remaining. Here, 1 is subtracted from 7 to get

    6. Thus, 6 is the predecessor of 7.

    Here are a few examples of successor and predecessor numbers

    Number

    Successor

    Predecessor

    18

    19

    17

    85

    86

    84

    562

    563

    561

    10,381

    10,382

    10,380

    3,33,462

    3,33,463

    3,33,461

    78,93,425

    78,93,426

    78,93,424

    Summary

    Natural Numbers

    The numbers that are used to count something

    1, 2, 3, 4, 5, 6, 7… and so on

    Successor Number

    The number we get on adding 1 to a number

    Predecessor Number

    The number we get on subtracting 1 from a number

    What’s next?

    In our next segment of Class 6 Maths, we will learn about Whole numbers and how to represent them on the number line.

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