Download Đề thi Violympic Toán Tiếng Anh lớp 4 vòng 9 năm

Đề thi Violympic Toán Tiếng Anh lớp 4 vòng 9 năm 2014 - 2015
Exam number 1: Fill in the blank with the suitable number
Question 1: Mary reads four books every month. She is busy and reads only one book on
March. On September, she takes a break and does not read any books. What is the
number of books that Anna reads in one year?
Question 2: Four boxes of chocolate candies are equivalent to eight hundred candies. The
number of candies is the same for all boxes. How many candies are in each box?
Question 3: If y is a natural number and y/9 < 7/12 then the greatest value of y is ...........
Question 4: 5/4 of 2 kg is ........... g.
Question 5: Calculate: (247 x 315 + 246 x 314) x (98 x 47 - 94 x 49) = ............
Question 6: If x is a natural number and 7/9 < x/12 then the smallest value of x is ............
Question 7: The product of four consecutive natural numbers is 570024. Their sum
is ...............
Question 8: The smallest number such that the product of all it's digits is 20 is ............
Question 9: If B is not divisibly by 24 and B is the greatest 5-digit number that the sum of
all digits is 21 then B = ...........
Question 10: If 324/483 = 108/x then the value of x is ...............
Exam number 2: Help the Miners to go through the maze by answering questions to
reach the destination. (Đi tìm kho báu)
Question 1: Calculate:
Question 2: Add and simplify your answer: 1/5 + 3/10 + 1/2 = .............
Question 3: Find x if
Question 4: Calculate: 7/45 + 5/3 - 7/5 = ...........
Question 5: Find y if y x 168 = 23 + 25 + 27 + ..... + 105
Exam number 3: Choose the most suitable answer in 4 available answers. (Cóc vàng
tài ba)
Question 1: Which of the following calculations euqals 5/36?
a. 1/2 + 1/3 x 1/6
b. 1/9 + 5/12 - 7/18
c. (1/2 + 1/3) : 1/6
d. 1/2 + 1/3 : 1/6
Question 2: Jane bought 4 products on 2 types. Their price was shown in the table:
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She paid $80 and had $5 left. How many products on type 1 did she buy?
a. 1
b. 4
c. 3
d. 2
Question 3: Which of the following fractions is the greatest?
a. 8/15
b. 7/12
c. 17/30
d. 1/2
Question 4: Sara's car weighs 41/6 tons and Anna's car weighs 3 tons. Which of the
following statements is true?
a. Anna's car weighs 25/6 tons more than Sara's car.
b. Sara's car weighs 25/6 tons more than Anna's car.
c. Anna's car weighs 23/6 tons more than Sara's car.
d. Sara's car weighs 23/6 tons more than Anna's car.
Question 5: The sum of odd numbers from 823 to 2015 is ..............
a. 818763
b. 847143
c. 845724
d. 844305
Question 6: Let A = abc x dec. Which of the following numbers can not be A?
a. 40302
b. 27336
c. 53064
d. 72541
Question 7: Which of the following numbers is in the sequence: 25; 28; 31; 34; 37; ..........
a. 2014
b. 22
c. 1235
d. 16
Question 8: Bob buys three times as many apples as Peter. Mia buys 7 apples more than
Bob and 19 apples more than Peter. How many apples do they buy together? Choose the
correct answer.
a. 26 apples
b. 37 apples
c. 49 apples
d. 51 apples
Question 9: How many natural numbers between 1000 and 4000 are there for which the
thousands digit equals the sum of the other three digits?
a. 20
b. 19
c. 16
d. 12
Question 10: Let M = 91011121314..... (M is written by consecutive natural numbers)
If M has 175 digits then when M divided by 5, the remaider is ..........
a. 2
b. 1
c. 0
d. 3
Đáp án
Exam number 1: Fill in the blank with the suitable number
Question 1: 41
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Mary đọc 4 cuốn sách mỗi tháng. Cô ấy rất bận và chỉ đọc một cuốn vào tháng Ba. Vào
tháng 9, cô ấy nghỉ ngơi và không đọc bất kỳ cuốn sách nào. Hỏi số sách mà Anna đã đọc
trong một năm là bao nhiêu?
Question 2: 200
Question 3: 5
Question 4: 2500
Question 5: 0
Question 6: 10
Question 7: 142503
Question 8: 299
Question 9: 99300
Question 10: 161
Exam number 2: Help the Miners to go through the maze by answering questions to reach
the destination. (Đi tìm kho báu)
Question 1: 0
Question 2: 1
Question 3: 1/20
Question 4: 19/45
Question 5: 16
Exam number 3: Choose the most suitable answer in 4 available answers. (Cóc vàng tài
ba)
Question 1: b
Question 2: a
Question 3: b
Question 4: d
Question 5: b
Question 6: a
Question 7: a
Question 8: c
Question 9: b
Question 10: b
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