NCERT solutions for class 6 maths chapter 2 Whole Numbers This chapter is a part of the number system unit. It will specifically deal with the whole numbers. The whole number is a new topic and it is important to learn also. It starts with the introduction of whole numbers and revision of natural numbers and then goes on with discussions of the predecessor and successor of whole numbers and natural numbers. CBSE NCERT solutions for class 6 maths chapter 2 Whole Numbers are covering the solutions for the questions from every concept. The other important topics of this chapter are a representation of whole numbers in the number line, properties of whole numbers and patterns in whole numbers. Before coming to this chapter you must ensure that you are comfortable with the natural numbers. The natural numbers are the numbers 1, 2, 3, 4, 5... which you use for counting. The natural numbers along with zero forms the collection of the whole numbers. CBSE NCERT solutions for class 6 maths chapter 2 Whole Numbers are covering indepth solutions to every problem related to the whole numbers. In this particular chapter, there are 3 exercises containing 38 questions. Solutions of NCERT for class 6 maths chapter 2 Whole Numbers contains all the 38 problems' solution to make your preparation better. Along with all these, you can click on the link given to get NCERT solutions for other classes and subjects.
Q1 Write the predecessor and successor of 19; 1997; 12000; 49; 100000.
The predecessor and successor are:
19:
Predecessor : 18
Successor : 20
1997:
Predecessor : 1996
Successor : 1998
12000
Predecessor : 11999
Successor : 12001
49:
Predecessor : 48
Successor : 50
100000:
Predecessor : 99999
Successor : 100001
Q2 Is there any natural number that has no predecessor?
Every natural number has a predecessor.
Although it is interesting to know that the predecessor of 1 is not a natural number.
Q3 Is there any natural number which has no successor? Is there a last natural number?
Every natural number has a successor. There is no last natural number. There are infinite natural numbers.
Q1 Are all natural numbers also whole numbers?
Yes, all natural numbers are whole numbers.
But, all whole numbers are not natural numbers.
Natural numbers =
Whole numbers=
Q2 Are all whole numbers also natural numbers?
No, all whole numbers are not natural numbers.
0 is a whole number, but it is not a natural number.
Q3 Which is the greatest whole number?
There are infinite whole numbers. Hence, there is no greatest whole number.
Every whole number you can think of has a successor, which is greater than than the number.
Q1 Write the next three natural numbers after 10999.
Given,
The next three natural numbers are:
Q2 Write the three whole numbers occurring just before 10001.
Given,
Three whole numbers occurring just before are:
Q3 Which is the smallest whole number?
The smallest whole number is 0. It has no whole number predecessor.
Q4 How many whole numbers are there between 32 and 53?
Given numbers are :
Number of whole numbers between =
There are whole numbers between
Q5 Write the successor of :
(a) 2440701 (b) 100199 (c) 1099999 (d) 2345670
The successor of following numbers are:
(a) 2440701
(b) 100199
(c) 1099999
(d) 2345670
Q6 Write the predecessor of :
(a) 94 (b) 10000 (c) 208090 (d) 7654321
The predecessor of the following numbers are:
(a) 94
(b) 10000
(c) 208090
(d) 7654321
The number on the left on the number line is smaller than the number that is on the right on the number line.
(a) 530, 503
is on the left.
(b) 370, 307
is on the left.
(c) 98765, 56789
is on the left.
(d) 9830415, 10023001
is on the left.
(a) Zero is the smallest natural number.  False. 0 is not a natural number.
(b) 400 is the predecessor of 399.  False. 400 is the successor of 399.
(c) Zero is the smallest whole number.  True.
(d) 600 is the successor of 599.  True
(e) All natural numbers are the whole numbers. True.
(f) All whole numbers are natural numbers.False. 0 is a whole number but not a natural number.
(g) The predecessor of a twodigit number is never a singledigit number. False. The predecessor of 10 is 9.
(h) 1 is the smallest whole number.  False. 0 is the smallest whole number.
(i) The natural number 1 has no predecessor.  True.
(j) The whole number 1 has no predecessor.  False. The whole number 1 has 0 as its predecessor.
(k) The whole number 13 lies between 11 and 12. False. The whole number 13 lies on the right side of 12 on the number line.
(l) The whole number 0 has no predecessor. True.
(m) The successor of a twodigit number is always a twodigit number False. The successor of 99 is 100.
Q Find : 7 + 18 + 13; 16 + 12 + 4.
7 + 18 + 13; 16 + 12 + 4
Q1 Find the sum by suitable rearrangement:
(a) 837 + 208 + 363 (b) 1962 + 453 + 1538 + 647
Sum by suitable rearrangement:
(a) 837 + 208 + 363
(b) 1962 + 453 + 1538 + 647
The product of the following by suitable rearrangement are:
(a)
(b)
(c)
(d)
(e)
(f)
(a)
Using Distributive law.
(b)
Using Commutative under multiplication
Using Distributive law.
(c)
Using Distributive law.
(d)
Using distributive law.
The product of the folllowing using suitable properties are:
(a)
Using distributive law.
(b)
Using distributive law.
(c)
Using Distributive law.
(d)
Using Distributive law.
Amount of petrol filled on Monday =
Amount of petrol filled on Tuesday =
Total amount of petrol =
Cost of 1 litre of petrol =
Cost of of petrol =
Amount of milk supplied in the morning =
Amount of milk supplied in the evening =
Total amount of petrol =
Cost of 1 litre of milk =
Cost of of milk =
(i) 
(c) Distributivity of multiplication over addition. 
(ii) 
(a) Commutativity under multiplication. 
(iii) 
(b) Commutativity under addition. 
NCERT solutions for class 6 maths chapter 2 Whole Numbers Topic: Patterns in Whole Numbers
Q1 Which numbers can be shown only as a line?
can be shown only as a line.
They cannot be shown as rectangle or square or triangle.
Q2 Which can be shown as squares?
and can be shown as squares.
4: 2 rows and 2 columns.
9: 3 rows and 3 columns
Q3 Which can be shown as rectangles?
can be shown as rectangles.
(Note: We are not counting squares as recatangles here)
Q4 Write down the first seven numbers that can be arranged as triangles, e.g. 3, 6, ...
3, 6, 10, 15, 21, 28, 36.
Q5 Some numbers can be shown by two rectangles, for example
Give at least five other such examples.
We can represent a number by two rectangles. for example 12 = 3 x 4 or 2 x 6
five other such examples are :
24 = 12 x 2 or 24 = 6 x 4
18 = 9 x 2 or 18 = 3 x 6
15 = 15 x 1 or 15 = 3 x 5
30 = 10 x 3 or 30 = 5 x 6
40 = 10 x 4 or 40 = 5 x 8.
Q1 Which of the following will not represent zero:
(a) 1 + 0 (b) 0 × 0 (c) 0/ 2 (d) (1010)/2
(a) 1 + 0
It does not represent zero.
(b) 0 × 0
It represents zero.
(c)
It represents zero.
(d)
It represents zero.
If the product of 2 whole numbers is zero, then one of them is definitely zero.
For example,
0 x 2 = 0 and 17 x 0 = 0
If the product of 2 whole numbers is zero, then both of them may be zero.
0 x 0 = 0
However, 2 x 3 = 6 (Since numbers to be multiplied are not equal to zero, the result of the product will also be nonzero.)
If the product of 2 numbers is 1, then both the numbers have to equal to 1.
For example, 1 x 1 = 1
However, 1 x 6 = 6
Clearly, the product of two whole numbers will be 1 in the situation when both numbers to be multiplied are 1.
Q4 Find using distributive property :
(a) 728 101 (b) 5437 1001 (c) 824 25 (d) 4275 125 (e) 504 35
(a) 728 101= 728 (100 + 1)
= 728 100 + 728 1
= 72800 + 728
= 73528
(b) 5437 1001 = 5437 (1000 + 1)
= 5437 1000 + 5437 1
= 5437000 + 5437
= 5442437
(c) 824 25 (800 + 24) 25 = (800 + 25  1) 25
=800 25+25 x 251 25
= 20000 + 625  25
= 20000 + 600
= 20600
(d) 4275 125 = (4000 + 200 + 100  25) 125
= 4000 125 + 200 125 + 100 125  25 125
= 500000 + 25000 + 12500  3125
= 534375
(e) 504 35 = (500 + 4) 35
= 500 x 35 +4 35
= 17500 + 140
= 17640
123456 8 + 6 = 987648 + 6 = 987654
1234567 8 + 7 = 9876536 + 7 = 9876543
Yes, the pattern works.
As 123456 = 111111 + 11111 + 1111 + 111 + 11 + 1,
123456 8 = (111111 + 11111 + 1111 + 111 + 11 + 1) 8
= 111111 8 + 11111 8 + 1111 8 + 111 8 + 11 8 + 1 8
= 888888 + 88888 + 8888 + 888 + 88 + 8
= 987648
And,
123456 8 + 6 = 987648 + 6 = 987648
Chapters No. 
Chapters Name 
Chapter  1 
NCERT solutions for class 6 maths chapter 1 Knowing Our Numbers 
Chapter  2 
Solutions of NCERT for class 6 maths chapter 2 Whole Numbers 
Chapter  3 
CBSE NCERT solutions for class 6 maths chapter 3 Playing with Numbers 
Chapter  4 
NCERT solutions for class 6 maths chapter 4 Basic Geometrical Ideas 
Chapter  5 
Solutions of NCERT for class 6 maths chapter 5 Understanding Elementary Shapes 
Chapter  6 

Chapter  7 

Chapter  8 

Chapter  9 
CBSE NCERT solutions for class 6 maths chapter 9 Data Handling 
Chapter 10 

Chapter 11 

Chapter 12 
CBSE NCERT solutions for class 6 maths chapter 12 Ratio and Proportion 
Chapter 13 

Chapter 14 
Solutions of NCERT for class 6 maths chapter 14 Practical Geometry 
Please ensure you must have done the previous chapter.
Go through the concepts and observations given in the NCERT textbook.
Take a look through some examples to understand the pattern to answer a specific question.
Implement all the learning while doing the exercise problems.
While doing the exercise problem you can assist yourself by using NCERT solutions for class 6 maths chapter 2 Whole Numbers.
Keep Working hard and happy learning!
3. Find the value of the following:
(a) 297 × 17 + 297 × 3 (b) 54279 × 92 + 8 × 54279
(c) 81265 × 169 – 81265 × 69 (d) 3845 × 5 × 782 + 769 × 25 × 218
Q.1 Are all natural numbers also whole numbers?
2. Find the product by suitable rearrangement:
(a) 2 × 1768 × 50 (b) 4 × 166 × 25
(c) 8 × 291 × 125 (d) 625 × 279 × 16
(e) 285 × 5 × 60 (f) 125 × 40 × 8 × 25