Violympic toán vòng 5

 


VÒNG 5 BÀI1

Find out the correct answer of each question.
Find 
 if 
The result is 
Question 2: Write as numerals: Nine thousand eight hundred and three The result is 
Question 3: Caculate: 
 = 
Question 4: Fill in the blank: 2 hours 2 minutes = minutes
Question 5: Find the smallest number in the sequence: 5067, 5760, 6705, 5076 The result is 
Question 6: If 
 and 
 then 
 = 
Question 7: If a square has one side`s length = 9 cm then its perimeter is cm.
Question 8: If this fraction expresses the colorless parts of the circle, then x = 
                      

Question 9: If half of the product of 8 and 9 is three times of N then N = 
Question 10: Calculate: 2002 x 2005 - 2002 - 2004 x 2001 =