Number Sense (IMO Level 2 Mathematics Olympiad (SOF) Class 3): Questions 1  6 of 38
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Question number: 1
» Number Sense
Appeared in Year: 2012
Question
The sum of first three common multiples of 3,4 and 6 ________.
Choices
Choice (4)  Response  

a.  58 

b.  64 

c.  72 

d.  36 

Question number: 2
» Number Sense
Appeared in Year: 2013
Question
How many hundreds need to be subtracted from 6981 to 481?
Choices
Choice (4)  Response  

a.  650 

b.  500 

c.  65 

d.  64 

Question number: 3
» Number Sense
Appeared in Year: 2013
Question
95 is ________ more than the product of 7 and 9.
Choices
Choice (4)  Response  

a.  49 

b.  23 

c.  32 

d.  63 

Question number: 4
» Number Sense
Appeared in Year: 2013
Question
Arrange the following in descending order.
(P) 5 thousands 5 hundred 0 tens 9 ones
(Q) 5 thousands 0 hundred 9 tens 5 ones
(R) 5 thousands 5 hundred 9 tens 0 ones
(S) 5 thousands 9 hundred 0 tens 5 ones
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 5
» Number Sense
Appeared in Year: 2013
Question
Find the difference between the largest possible number and smallest possible number from given digits.
Choices
Choice (4)  Response  

a.  6174 

b.  6147 

c.  7241 

d.  1746 

Question number: 6
» Number Sense
Appeared in Year: 2013
Question
Mr. Arora wrote a 3digit number on the blackboard. Three students Jiya, Priya and Tiya said the following about that number:
Jiya: “It is a 3digit number but not the least”.
Priya: “It is less than the predecessor of greatest 3digit number”.
Tiya: “It is having two common digits”.
Choices
Choice (4)  Response  

a.  789 

b.  229 

c.  565 

d.  828 
