IMO Level 1 Mathematics Olympiad (SOF) Class 2: Questions 107  114 of 578
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Question number: 107
Question
________ Groups of the is the same as .
Choices
Choice (4)  Response  

a.  40  
b.  60  
c.  20  
d.  10 
Question number: 108
Question
Study the number machine shown. What operation is used to change the in number to the out number?
Choices
Choice (4)  Response  

a.  Addition  
b.  Subtraction  
c.  Multiplication  
d.  Question does not provide sufficient data or is vague 
Question number: 109
Question
Add a number from and the result is . The number is ________.
Choices
Choice (4)  Response  

a.  24  
b.  10  
c.  30  
d.  25 
Question number: 110
Question
Subtract a number from and the result is . The number is ________.
Choices
Choice (4)  Response  

a.  0  
b.  10  
c.  5  
d.  14 
Question number: 111
Question
Which of the following number sentence is incorrect?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 112
Question
How many flowers are there altogether?
Choices
Choice (4)  Response  

a.  30  
b.  25  
c.  33  
d.  32 
Question number: 113
Question
The difference between greatest three digit number and smallest three digit number is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 114
Question
The difference between the numbers shown by two abacuses is ________.
Choices
Choice (4)  Response  

a.  49  
b.  10  
c.  25  
d.  39 