Ncert Solutions for Class 6 Maths Chapter 1 Knowing Our Numbers – Pgmrs
Ncert Solutions for Class 6 Maths Chapter 1 Knowing Our Numbers Exercise 1.1:
Ncert Solutions for Class 6 Maths Chapter 1 Knowing Our Numbers Exercise 1.1: In this Chapter knowing our Numbers We learn the basics of the Numbers System In class 6 maths ncert Solutions. This Chapter Knowing our Numbers is very important for Class 6 maths Students to get a High Score in their Exam. And we help the Class 6 Students to Achieve Their Dream By providing Class 6 Maths Ncert Solutions Chapter 1 Knowing Our Numbers With Free Pdf Download. And We also Provide Video Solutions.
Ncert Solution for Class 6 Maths Chapter 1 Knowing Our Numbers Exercise 1.1 Textbook Solution:-
Exercise 1.1 Class 6 maths NCERT solutions Chapter 1 Knowing our Numbers pdf:-
Introduction Chapter 1 Knowing Our Numbers :-
1. How many numbers can you make?:-
Suppose, we have four digits 7, 8, 3, 5. Using these digits we want to make
different 4-digit numbers in such a way that no digit is repeated in them. Thus,
7835 is allowed, but 7735 is not. Make as many 4-digit numbers as you can.
Which is the greatest number you can get? Which is the smallest number?
The greatest number is 8753 and the smallest is 3578.
Think about the arrangement of the digits in both. Can you say how the largest
number is formed? Write down your procedure.
2. Shifting digits
Have you thought what fun it would be if the digits in a number could shift
(move) from one place to the other?
Think about what would happen to 182. It could become as large as 821
and as small as 128. Try this with 391 as well.
Now think about this. Take any 3-digit number and exchange the digit at
the hundreds place with the digit at the ones place.
(a) Is the new number greater than the former one?
(b) Is the new number smaller than the former number?
Write the numbers formed in both ascending and descending order.
3. Introducing 1,00,000:-
Which is the greatest 5-digit number?
Adding 1 to the greatest 5-digit number, should give the smallest
6-digit number : 99,999 + 1 = 1,00,000
This number is named one lakh. One lakh comes next to 99,999.
10 × 10,000 = 1,00,000
We may now write 6-digit numbers in the expanded form as
2,46,853 = 2 × 1,00,000 + 4 × 10,000 + 6 × 1,000 +
8 × 100 + 5 × 10 +3 × 1
This number has 3 at ones place, 5 at tens place, 8 at hundreds place, 6 at
thousands place, 4 at ten thousands place and 2 at lakh place. Its number
name is two lakh forty six thousand eight hundred fifty three.
4.Use of commas:-
You must have noticed that in writing large numbers in the
sections above, we have often used commas. Commas help us
in reading and writing large numbers. In our Indian System
of Numeration we use ones, tens, hundreds, thousands and
then lakhs and crores. Commas are used to mark thousands,
lakhs and crores. The first comma comes after hundreds place (three digits from the
right) and marks thousands. The second comma comes two digits later (five digits
from the right). It comes after ten thousands place and marks lakh. The third comma
comes after anothertwodigits(seven digitsfrom the right).It comes aftertenlakh
place and marks crore.
For example, 5, 08, 01, 592
3, 32, 40, 781
7, 27, 05, 062