Questions & Answers

Question

Answers

Answer

Verified

128.7k+ views

Let us draw the number line and mark the positions of given numbers. To find $8 - 3$, we will start from the number $8$ and we will move backward to reach the number $3$.

From the number line, we can say that $5$ steps are needed from the number $8$ to reach the position of number $3$. Therefore, $8 - 3 = 5$.

Now to find $6 - 2$, we will start from the number $6$ and we will move backward to reach the number $2$.

From the number line, we can say that $4$steps are needed from the number $6$to reach the position of $2$. Therefore, $6 - 2 = 4$.

Now to find $9 - 6$, we will start from the number $9$ and we will move backward to reach the number $6$.

From the number line, we can say that $3$ steps are needed from the number $9$ to reach the position of number $6$. Therefore, $9 - 6 = 3$.

A number line can be defined as a straight line and we can expand it infinitely in both directions. A number is usually represented by a horizontal line. To find $8 - 3$, we can start from the number $8$ and move $3$ steps backward. Similarly, to find $8 + 3$ we can start from the number $8$ and move $3$ steps forward. We move the point to the right of the number line when we need to add a positive number. We move the point to the left of the number line when we need to add a negative number.