de thi violympic toan tieng anh lop 4 vong 9 nam 2015 2016

Đề thi Violympic Toán Tiếng Anh lớp 4 vòng 9 năm 2015 - 2016
Exam number 1: Fill in the blank with the suitable number
Question 1: The expression 4 x 1000 + 5 x 100 + 4 x 1 is equal to ..............
Question 2: What number should be placed in the box to make ?

Question 3: What is the remainder when 65870 is divided by 8?
Question 4: Mya has 10000 dollars in bills of 40 dollars.How many 40 dollars- bills does
she have?
Question 5: A large box of candies and a small box of candies together cost 13 dollars. If
the large box costs 5 dollars more than the small box, what is the price of the small box of
candies?
Question 6: Six students had an orange eating contest. The graph shows the number of
oranges eaten by each student. Mary ate the fewest oranges and Jack ate the greatest.
How many more oranges did Jack eat than Mary?

Question 7: The numbers from 1 to 1000 are written. How many of these numbers have at
least two digits 5?
Question 8: Five students do an exam with a maximum score of 50. The scores of four of
the students are 41, 44, 46 and 49. The average of five students’ scores is the same as the
score of the fifth student. The score of the fifth student is .............
Question 9: Five years ago, Sarah was 7 years old. Two years later, she will be .............
years old.
Question 10: A fraction is equal to 2/5. The sum of its denominator and its numerator is
91. What is the difference between the denominator and numerator of this fraction?
Exam number 2: Đi tìm kho báu
Question 1: Nick has 3/5 of a dollar and Emma has 3/10 of a dollar. Together they
have ………….
a. $6/10

b. $8/10

c. $9/10

d. $15/10

Question 2: The value of 1/12 : 1/8 = ………….

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Question 3: The symbol

If

is evaluated as 4 x 7 – 3 x 6 = 10.

then the number that should be replaced in the question mark is ……………

Question 4: The are of a rectangular garden is 36m2. Its has a length of 9m. Its perimeter,
in metres, is ……………..
Question 5: Last year, Bob’s age is divided by 7. This year, his age is divisible by 5. In
how many years will Bob be 27 years old?
Exam number 3: Cóc vàng tài ba
Question 1: The value of 40 + 60000 + 500 + 30 is ………….
a. 65070

b. 65430

c. 60570

d. 60543

Question 2: The average of the numbers 21, 23, 25 and 27 is ……………….
a. 22

b. 23

c. 24

d. 26

Question 3: The perimeter of a rectangular is 3 times its length. If the perimeter is 120cm,
the area of the rectangle is …………
a. 3200cm

b. 800cm

c. 800cm2

d. 3200cm2

Question 4: Which number should be replace the blank:

a. 32

b. 96

c. 48

d. 24

Question 5: Sophia plants ten trees every three minutes. If she continues planting at the
same rate, how long will it take she to plant 250 trees?
a. 5/4 h

b. 25h

c. 3/4 h

d. 75h

Question 6: Anna scored 325 points during the badminton season. If her average point
was 13 per game, how many games did she play?
a. 25

b. 13

c. 26

d. 14

Question 7: If a machine produces 90 items in one minute, how many items would it
produce in 20 second?
a. 180

b. 20

c. 30

d. 60

Question 8: The digits 1, 2, 3, 4, 5 and 6 are each placed in one of the boxes so that the
resulting product is correct. If each of the six digits is used exactly once, the digit
represented by’?” is ………….

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a. 6

b. 2

c. 3

d. 4

Question 9: The average of five different natural numbers is 4. If the different between
the largest and smallest of these numbers is as large as possible, what is the average of the
other three numbers?
a. 5

b. 2

c. 3

d. 6

Đáp án
Exam number 1: Fill in the blank with the suitable number
Question 1: 4504
Question 2: 18

Question 3: 6
Question 4: 250
Question 5: 4
Question 6: 5
Question 7: 19
Question 8: 45
Question 9: 14
Question 10: 39
Exam number 2: Đi tìm kho báu
Question 1:c
Question 2: 2/3
Question 3: 2
Question 4: 26
Question 5: 12
Exam number 3: Cóc vàng tài ba
Question 1: c
Question 2: c
Question 3: c
Question 4: b

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Question 5: a
Question 6: a
Question 7: c
Question 8: c
Question 9: c

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