class 9 Number System-Ex-1.4

class 9 Number System-Ex-1.4

Question 1.

Visualize 3.765 on the number line using successive magnification.


Solution 1:
  • Clearly, the value lies between 3 and 4
  • The numbers 3.7 and 3.8 lie between 3 and 4.
  • The numbers 3.76 and 3.77 lie between 3.7 and 3.8.
  • The numbers 3.764 and 3.766 lie between 3.76 and 3.77
  • The number 3.765 lies between 3.764 and 3.766.
  • Therefore, we need to use the successive magnification, after locating numbers 3 and 4 on the number line.
ex 1.4 class 9

Question 2:

Visualize 4.26 on the number line, up to 4 decimal places.


Solution 2:

The number 4.26 can also be written as 4.262.... .

ex 1.4 class 9

Therefore, we need to use the successive magnification, after locating numbers 4 and 5 on the number line to visualize up to 4 decimal places.