# DAV Class 6 Maths Chapter 1 Worksheet 2 Solutions

The DAV Class 6 Maths Book Solutions Pdf and DAV Class 6 Maths Chapter 1 Worksheet 2 Solutions of Natural Numbers and Whole Numbers offer comprehensive answers to textbook questions.

## DAV Class 6 Maths Ch 1 WS 2 Solutions

Question 1.
Complete the statements by filling in the blanks.

(а) The smallest whole number is __________
Solution:
0

(b) There is __________ largest whole number.
Solution:
no

(c) In whole numbers, __________ has no predecessor.
Solution:
0

(d) The predecessor of the smallest 5-digit number has __________ digits.
Solution:
4

(e) The successor of the greatest 5-digit number is __________.
Solution:
100000

(f) The smallest 7-digit number ending in 5 is __________.
Solution:
1000005

(g) 387 is to the __________ of 388 on the number line.
Solution:
left

(h) 4397 is to the __________ of 4396 on the number line.
Solution:
right Question 2.
Write the successor of the following.

(a) 45638
Solution:
Successor of 45638 = 45638 + 1 = 45639

(b) 10009
Solution:
Successor of 10009 = 10009 + 1 = 10010

(c) 220209
Solution:
Successor of 220209 = 220209 + 1 = 220210

(d) 4226372
Solution:
Successor of 4226372 = 4226372 + 1 = 4226373

Question 3.
Write the predecessor of the following:

(a) 33801
Solution:
Predecessor of 33801 = 33801 – 1 = 33800

(b) 100000
Solution:
Predecessor of 100000 = 100000 – 1 = 99999

(c) 6698979
Solution:
Predecessor of 6698979 = 6698979 – 1 = 6698978

(d) 80115670
Solution:
Predecessor of 80115670 = 80115670 – 1 = 80115669. Question 4.
Find the next three successors of 647999
Solution:
Ist successor of 647999 = 647999 + 1 = 648000
IInd successor of 647999 = 648000 + 1 = 648001
IIIrd successor of 647999 = 648001 + 1 = 648002

Question 5.
Find three immediate predecessors of 552002.
Solution:
1st predecessor of 552002 = 552002 – 1 = 552001
IInd predecessor of 552002 = 552001 – 1 = 552000
IIIrd predecessor of 552002 = 552000 – 1 = 551999

Question 6.
Compare the following numbers.
(a) 729 _____ 279
(b) 10899 _____ 10799
(c) 9785 _____ 7835
(d) 135629 _____ 136529
Solution:
(a) 729 > 279
(b) 10899 > 10799
(c) 9785 > 7835
(d) 135629 < 136529 Question 7.
Arrange the following in ascending order 43, 287, 15769, 833, 49538, 34, 798665.
Solution:
Ascending order is: 34, 43, 287, 833, 15769, 43287, 49538 and 798665.

Question 8.
Arrange the following in descending order 3951, 1024, 977, 422596, 38675, 560832, 67
Solution:
Descending order is: 560832, 422596, 38675, 3951,1024, 977, 67

Question 9.
Form the greatest 7-digit number using the digits 3, 8, 9 (digits may repeat).
Solution:
Digits are 3, 8 and 9
∴ Greatest 7-digit number is 9999983.

Question 10.
Write the smallest 6-digit number using the digits 4, 5, 0 (digits may repeat).
Solution:
Smallest 6-digit number using 4, 5, and 0 = 400005. ### DAV Class 8 Maths Chapter 1 Worksheet 2 Notes

Whole Numbers and Their Representation on Number Line:

Natural numbers along with zero are called whole numbers.
Example: 0, 1, 2, 3, 4, 5, 6, 7, 8 ………

Number Line:
A line sub-divided into equal parts and marked as 0, 1, 2, 3, 4 ……………… Successor and Predecessor:

Successor of a whole number can be obtained by adding 1 to it.
Example:
Successor of 12 is 12 + 1 = 13

Predecessor of a whole number can be obtained by subtracting 1 from it.
Example:
Predecessor of 16 is 16 – 1 = 15.

Example 1:
Rearrange the digits 98750432 to form smallest 7-digit and greatest 8-digit numbers.
Solution:
Let us write the digits in ascending order 0, 2, 3, 4, 5, 7, 8, 9
∴ Smallest 7-digit number is 02345789
and the greatest 8-digit number is 98754320