Đề thi Violympic Toán Tiếng Anh lớp 5 vòng 10 năm 2014 - 2015

Đề thi giải Toán Tiếng Anh trên mạng lớp 5

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Cuộc thi giải Toán Tiếng Anh qua mạng năm 2015 - 2016 đang đi đến những vòng thi cuối với mức độ khó ngày càng nâng cao. Tham gia làm bài test Đề thi Violympic Toán Tiếng Anh lớp 5 vòng 10 năm 2014 - 2015 trên trang VnDoc.com để ôn tập và rèn luyện cho những vòng thi này nhé! Chúc các em ôn tập tốt!

Exam number 1:
Question 1:
Fill in the blank with suitable sign (>, =, <)
Compare: 7,12 : 0,5 + 8,23 .......... 28,48 : 2 + 4,12 : 0,5
Fill in the blank with the suitable number
Question 2:
If 144/17 x 34/12 < n < 169/34 : 13/68 and n is a natural number then n = ..........
Question 3:
The ratio of the number of girl students to the number of boy students in a class is 3 : 5 and the number of boy students is 12 students more than the number of girl students. There are ......... students in this class.
Question 4:
Find x if x is a natural number and 0,6 x 7,5 < x < 3,5 x 1,6.
Answer: x = ......................
Question 5:
34m2 27cm2 + 27m2 20dm2 = ......... dm2.
Question 6:
Divide 77 into three parts so that one is 150% of each of the other two. The smallest number is ..............
Question 7:
The sum of four consecutive number is 948. Find the greatest number.
Answer: The greatest number is ............
Question 8:
One 7 x 7 x 7 cube is painted, and then cut it into 1 x 1 x 1 cubes. How many of these cubes are painted?
Answer: ........... 1 x 1 x 1 cubes are painted.
Question 9:
Find n such that: 2/3 + 2/15 + 2/35 + ...... + 2/n = 322/323
Answer: n = .........
Question 10:
Find K such that: 
Answer: K = ...........
Exam number 2: Choose the most suitable answer in 4 available answers. (Cóc vàng tài ba)
Question 1:
Find x such that 
The value of x is ..........
Question 2:
Find the smallest number that the sum of its digits is 15.
Answer: This number is ...........
Question 3:
Calculate: 3,54 + 1,12 + 0,98 + 2,3
The result is .........
Question 4:
15% of 1080kg = ..........g.
Choose the correct number fill in the blank.
Question 5:
What percentage of the area of the square is pink?

Answer: .......% of the area of the square is pink.
Question 6:
Now Peter's father is 36 years old and he is 11 years old. 
......... years ago, Peter's father was six times as old as him.
The missing number is ..........
Question 7:
If the sum of two number is 463 and there are eighteen odd numbers between these numbers then the less number is ...............
Question 8:
The surface areas of a cube is 864cm2.
The volume of this cubes is ...........
Question 9:
Find y such that: 
Answer:
The value of y is ............
Question 10:
Find the last digit of A = 11 x 21 x 31 x ...... x 71 + 9 x 19 x 29 x .... x 89
Answer: The last digit of A is .............
Exam number 3: Đi tìm kho báu
Question 1:
Find X if X x 100 - 1,968 = 1,254 + 3,978
Answer: X = ...........
Write your answer by decimal in the simplest form.
Question 2:
60% of .......... km = 1230m
Write your answer by decimal in the simplest form.
Question 3:
If x is a natural number and 4728/100 < x then the least value of x is ...........
Question 4:
Peter wrote consecutive numbers from 8 to 723. How many digits did he write?
Answer: There are .......... digits.
Question 5:
The average of three numbers is 32. The second number is two times the first number and the third number is six units more than the second number. The first number is ................
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