RBSE Class 6 Maths Important Questions Chapter 2 Whole Numbers

Rajasthan Board RBSE Class 6 Maths Important Questions Chapter 2 Whole Numbers Important Questions and Answers.

RBSE Class 6 Maths Chapter 2 Important Questions Whole Numbers

Multiple Choice Questions

Question 1.
Smallest whole number is :
(a) 0 
(b) 1 
(c) 2 
(d) - 1
Answer:
(a) 0 

Question 2. 
The smallest square number is :
(a) 0 
(b) 1 
(c) 2 
(d) 4
Answer:
(b) 1 

 

Question 3. 
If 1 is added to a number, we get its :
(a) Successor 
(b) Predecessor
(c) Identity
(d) None of these
Answer:
(a) Successor 

Question 4. 
The successor of the largest two digit number is:
(a) 98 
(b) 99
(c) 100 
(d) 101
Answer:
(c) 100 

Question 5. 
The two digit smallest whole number
(a) 9 
(b) 10 
(c) 11 
(d) 12
Answer:
(b) 10 

Question 6. 
The whole number which does not have predecessor is :
(a) 0 
(b) 1
(c) 2 
(d) None of these
Answer:
(a) 0 

Fill in the Blanks

Question 1. 
1946 + ________ = 984 + 1946
Answer:
984

Question 2. 
500 is predecessor of  ________
Answer:
501
 
Question 3. 
The smallest triangular number is ________
Answer:
3

Question 4. 
The multiplicative identity is ________
Answer:
1

Question 5 
________ is the additive identity.
Answer:
0

Question 6. 
Division by ________ is not possible.
Answer:
0

Question 7. 
If a non-zero whole number divided by itself, the quotient is ________
Answer: 
1

Question 8. 
The single digit largest whole number is ________
Answer:
9

State whether True or False

Question 1. 
Zero is the largest natural number.
Answer:
False

Question 2. 
One is the smallest whole number.
Answer:
False

Question 3. 
7000 is the successor of 6999.
Answer:
True

Question 4. 
500 is the predecessor of 499.
Answer:
False

Very Short Answer Type Questions

Question 1. 
Write the next four whole numbers after 20999.
Answer:
The next four whole numbers after 20999 are 21000, 21001, 21002 and 21003.

Question 2. 
Write. the four whole numbers just before 30001.
Answer:
The whole just before 30001 are 30,000, 29,999, 29,998 and 29,997.

Question 3. 
How many whole numbers are there between 2032 and 2209?
Answer:
Number of whole numbers between 2032 and 2209 are :
(2209 - 2032) - 1 = 177 - 1 = 176 

Question 4. 
Which is the smallest whole number?
Answer:
Zero (0) is the smallest whole number. 

Short Answer Type Questions 

Question 1.
Write the successor and predecessor
(i) 687890 
(ii) 6470999
(iii) 9274 
(iv) 10000
Answer:
(i) Successor of 687890
= 687890 + 1 = 6,87,891 
Predecessor of 687890
= 687890 - 1 = 6,87,889

(ii) Successor of 6470999
= 6470999 + 1 = 64,71,000 
Predecessor of 6470999
= 6470999-1 = 64,70,998

(iii) Successor of 9274
= 9274+ 1 = 9275 
Predecessor of 9274
= 9274-1 = 9273

(iv) Successor of 10000
= 10000 +1 = 10001 
Predecessor of 10000
= 10000-1 = 9999

Question 2. 
Find the sum by suitable arrangement :
(i) 507 + 300 + 193
(ii) 1872 + 343 + 1128 + 657
Answer:
(i) 507 + 300 + 193
= (507 + 193) + 300 = 700 + 300 = 1000 

(ii) 1872 + 343 + 1128 + 657
= (1872 + 1128)+ (343 + 657)
= 3000 + 1000 = 4000 

Question 3. 
Find the sum of following by using associative property of addi¬tion :
(i) 7864 + 9999
(ii) 7568 + 99999
Answer:
(i) 7864 + 999= 7864 + (10000 - 1)
= (7864 + 10000) - 1 = 17864-1 = 17863

(ii) 7568 + 99999 = 7568 + (100000 - 1)
= (7568 + 100000) - 1 = 107568 - 1 = 107567