Std-6 Maths chapter-2 | Gujarat Board GSEB Solutions  

Whole Numbers

We have seen that no natural number precedes the natural number 1.  Hence, we take 0 (zero) as the number before the natural number 1. 

(Natural numbers get a set of whole numbers by including zero.)

We have learned basic calculations of numbers such as addition, subtraction, multiplication and division in previous classes.  We know that.  Which method can be used in which question. 

So let's put these numbers on a number line.  But before that let us know about the number line.  Number line Draw a straight line. 

Let's take a single point on that.  Let us name that point 0.  To the right of zero (0) let us take another point and name it 1.  This distance between is and 1 is called the unit distance. 

Now, let's take another point on this line at a distance equal to the unit distance to the right of 1 and name it 2.  In the same way, take 3, 4, 5 dots at the unit distance to the right of 2. 

This is how you can go to any whole number on the right. 

The following line is the number line for integers: What is the distance between points 2 and 4? 

Its distance is definitely only two units.  Can you tell the distance between points 2 and 6 and 2 and 7? 

You can see that the number 7 on the number line is to the right of the number 4.  The number 7 is a number greater than 4.  So 7> 4.

ધોરણ-6 પ્રકરણ-2 નાં દાખલાઓની ગણતરીના વિડિઓ જોવા લિંક પર ક્લિક કરો

સ્વાધ્યાય - 2.1

સ્વાધ્યાય- 2.2

સ્વાધ્યાય -2.3

Now the number 8 is 6 on the number line is the number on the right.  Hence 8> 6. From this observation we can tell which of these two integers is the largest number and if any one number on the number line is to the left of any other number, then that number is a small number. 
For example 4 <9.  4 is the number to the left of the number 9.  Similarly 12> 5, 12 is the number to the right of 5.  Can you tell which number is greater than 10 and 20 and which number is smaller? 
Now, you show the position of 30, 12, 18 on the number line.  Which of these numbers is located first on the left?  Can you tell which number is on the right, both 1005 and 9756? 
Display numbers after 12 and before 7 on the number line.