DethiViolympic toantienganh lop4 vong 5

Exam number 1
Find out the correct answer of each question.
Question 1: Find 
 if 
The result is 
Question 2: Caculate: 
 = 
Question 3: Write as numerals: Nine thousand eight hundred and three The result is 
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 this fraction expresses the colorless parts of the circle, then x = 
                      

Question 7: If 
 and 
 then 
 = 
Question 8: If a square has one side`s length = 9 cm then its perimeter is cm.
Question 9: Calculate: 2002 x 2005 - 2002 - 2004 x 2001 = 
Question 10: If half of the product of 8 and 9 is three times of N then N =