lop 5 bo de thi violympic toan tieng anh tat ca cac vong co dap an 2

Đề thi Violympic Toán Tiếng Anh lớp 5 vòng 2 năm 2015 - 2016
Question 1: Find equal values. (Tìm các cặp giá trị bằng nhau)

Question 2:
Question 2.1: Compare 7/9 .......... 2/3
Fill in the blank with the suitable sign (>, <, =)
Question 2.2: If 209/143 = (209 : n)/13 then n = .............
Question 2.3:

The correct number fill in the box is ..............
Question 2.4: Complete the table (Write your answer in the simplest form). Rule: divide
by 4/5

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Question 2.5: Write the equivalent fraction of 3/8 with a denominator of 1000.
Question 2.6: The perimeter of the square below is ............ cm. (Simplify your answer)

Question 2.7: The sum of two numbers is 156 and their ratio is 6/7. The smaller number
is ............
Question 2.8: Convert: 2 tons 40kg = .................kg.
Question 2.9: The last digit of the product 11 x 22 x 33 x ..... x 99 is ............
Question 2.10: The sum of two numbers is the greatest 4-digit number and their ratio is 1 :
2. The smaller number is ..............
Question 3:
Question 3.1: Which of the following fractions is the greatest?
A. 3/10

B. 2/5

C. 9/20

D. 7/20

2
Question 3.2: 4 kg =... g. The missing number is .............
5
A. 440

B. 420

C. 4200

D. 4400

1
3
Question 3.3: If 3 : m  2 then m = .............
2
4

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A. 5/2

B. 14/11

C. 6(3/8)

D. 77/8

Question 3.4:

2 2 2
2
The value of M  1 x1  1  ...  1
is ..............
3 5 7
97
A. 3/97

B. 5/97

C. 5/99

D. 33

ĐÁP ÁN
Question 1: Find equal values.
(2) = (10); (4) = (12); (5) = (1); (8) = (6); (9) = (16); (11) = (17); (13) = (7); (14) = (19);
(15) = (18); (20) = (3
Question 2:
Question 2.1: >

Question 2.6: 6

Question 2.2: 11

Question 2.7: 72

Question 2.3: 125

Question 2.8: 2040

Question 2.4: 2

Question 2.9: 0

Question 2.5: 375
Question 3:

Question 2.10: 3333

Question 3.1: C
Question 3.2: D
Question 3.3: B
Question 3.4: D

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Đề thi Violympic Toán Tiếng Anh lớp 5 vòng 3 năm 2015 - 2016
Question 1: Choose consecutively the cells with increasing value to remove them
from the table.

Question 2:
Fill in the blank with the suitable sign (>, <, =)
Question 2.1: Compare: 5/123 ............1/41

1 2
Question 2.2: Divide 5  1  .... Write your answer in the simplest form.
3 6
Question 2.3: 3km2 = .......... m2.
Question 2.4:...../4 m = 175cm. The missing number is .............
Question 2.5: The cost of eight spoons is 4 dollars. How much do 6 spoons cost?
Question 2.6: The sum of two consecutive odd numbers is 2016. The greater number
is ...............
Question 2.7: The sum of denominator and numerator of a fraction is 91 and the fraction
is equal to 6/7. The denominator of the fraction is ...............
Question 2.8: 1/2 + 1/4 + 1/n = 11/12. The value of n is ...........
Question 2.9: Bella has 30 candies. Alice has 5 candies fewer than Bella. Sara has 5
candies more than Bella. How many candies do they have altogether?
Question 2.10: The sum of the page number of the last 3 pages of a book is 369. What is
the last page number?

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Question 3:
Question 3.1: 25mm2 = .............
a. 1/40m2 b. 1/400m2 c. 1/4000cm2d. 1/40000m2
Question 3.2: 3/100 m2 = ...........
a. 3dm2 b. 30cm2 c. 3mm2d. 3cm2
Question 3.3: 2kg = ..........
a. 20gb. 200g c. 2000gd. 20000g
Question 3.4: Write >, <, =
3cm2 200mm2 ............. 3200mm2
Question 3.5: 3/10 kg = .............g.
Đáp án

Question 1: Choose consecutively the cells with increasing value to remove them from
the table.
(9) < (7) < (3) < (4) < (10) < (6) < (2) < (8) < (5) < (1)
Question 2:
Question 2.1: >

Question 2.6: 1009

Question 2.2: 4

Question 2.7: 49

Question 2.3: 3000000

Question 2.8: 7

Question 2.4: 7

Question 2.9: 92

Question 2.5: 3
Question 3:

Question 2.10: 124

Question 3.1: d
Question 3.2: a
Question 3.3: c
Question 3.4: <
Question 3.5: 300

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Đề thi Violympic Toán Tiếng Anh lớp 5 vòng 4 năm 2015 - 2016
Exam number 1:
Question 1: In 12.36 which digit is in the ones place?
a. 3

b. 2

c. 1

d. 6

Question 2: Which of following decimal numbers should be replace the question mark?

a. 0.7

b. 0.6

c. 0.8

d. 0.9

Question 3: Write 12/100 as a decimal number.
a. 12

b. 1.2

c. 0.12

d. 0.012

c. 0.4

d. 0.2

Question 4: What decimal number is shown?

a. 0.3

b. 0.5

Question 5: Write 2.25 as a mixed number in the simplest form.
a. 2

1
4

b. 225/100

c. 2

25
100

d. 2

25

10

Question 6: Write the decimal number "six and three hundredth" using digits.
a. 3.6

b. 6.3

c. 3.06

d. 6.03

Question 7: Convert 25g = ............. kg. Write your answer by decimal in the simplest

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form.
a. 0.025

b. 0.25

c. 2500

d. 2.5

Question 8: Write numbers below in order from least to greatest: 3/12; 4/5; 0.75; 0.23
a. 3/12; 0.23; 0.75; 4/5
b. 0.23; 3/12; 0.75; 4/5
c. 3/12; 4/5; 0.75; 0.23
d. 0.23; 3/12; 4/5; 0.75

Question 9: If x is a natural number and x < 2876/100 then the greatest value of x is:
a. 287

b. 28

c. 27

d. 2876

Question 10: Find x if ab4,938 < ab4,9x6 < ab4,953.
a. 6

b. 4

c. 5

d. 3

Exam number 2: Choose 2 consecutive cells which have the same or equal value.

Exam number 3:
Question 1: Fill in the blank with the correct decimal number: 9/100 kg = .............kg.
Question 2: Write 47/100 as a decimal number in the simplest form.
Question 3: In 348.256, which digit is in the tenths place?
Question 4: In 348.256, which digit is in the tens place?
Question 5: 4/10 + 6/1000 = ............. Write your answer by decimal in the simplest form.
Question 6: I have two digits in the decimal part. I am greater than 75 but less than 80
What least possible number am I?
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Question 7: Find the value of p.

Question 8: Fill in the blank with the correct number. 3/100 m = ............cm
Question 9: If p and q are consecutive natural numbers and 9.062 < p + q < 12.988 then p
x q = .............
Question 10: If n is a natural number and n < 12.03 < n + 5 the the smallest value of n
is ..............
ĐÁP ÁN
Exam number 1:
Question 1: b

Question 6: d

Question 2: c

Question 7: a

Question 3: c

Question 8: b

Question 4: c

Question 9: b

Question 5: a
Question 10: b
Exam number 2: Choose 2 consecutive cells which have the same or equal value.
(1) = (5); (2) = (12); (3) = (11); (4) = (19); (6) = (16); (7) = (18); (8) = (20); (9) = (17);

(10) = (15); (13) = (14)
Exam number 3:
Question 1: 0,09

Question 6: 75,01

Question 2: 0,47

Question 7: 0,6

Question 3: 2

Question 8: 3

Question 4: 4

Question 9: 25

Question 5: 0,406

Question 10: 8

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Đề thi Violympic Toán Tiếng Anh lớp 5 vòng 5 năm 2015 - 2016
Exam number 1: Choose the increasing value. (Chọn các giá trị theo thứ tự tăng
dần)

Exam number 2:

Question 1: Convert 25m = ........... km.
a. 250

b. 0,025

c. 2,5

d. 0,25

Question 2: 2m2 = .............. dm2. The missing number is ............
a. 200

b. 200000

c. 2000

d. 20000

c. 3250

d. 32,5

c. 0,34

d. 0,034

c. 503

d. 5030

Question 3: Convert 3,25kg = ........... g.
a. 0,325

b. 325

Question 4: Convert 340kg = .......... ton.
a. 34

b. 3,4

Question 5: Convert 5.03m = ............cm.
a. 50,3

b. 0,503

Question 6: How many natural numbers are there less than 7,23?
a. 8

b. 7

c. 5

d. 6

Question 7: How many odd numbers are there less than 54,91?

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a. 55

b. 27

c. 26

d. 28

Question 8: How many even numbers are there less than 46,25?
a. 25

b. 47

c. 24

d. 23

Exam number 3: Fill in the blank with the suitable number.
Question 1: Convert 1m = ..........cm.
Question 2: Convert 1mm = ............ m
Question 3: If x is a natural number and 3,8 < x < 4,3 then x = ..............
Question 4: In the following numbers, which is the greatest?
7,568; 9,265; 8,975; 7,689; 9,256
Question 5: In the following numbers, which is the smallest?
4,92; 5,84; 4,85; 8,54; 4,58; 5,48
Question 6: Convert: 5km 2m = ............. km.
Question 7: If m is a even number and 81,32 > m > 78,54 then m = .......
Question 8: Use all the digits below to form the decimal number that is smaller than 5.
2; 5; 9; 4; 8. How many such numbers are there?
Question 9: Fill in the blank with the suitable sign (>, <, =)
Compare: 76,5 ......... 75,66

Question 10: Compare: 31,040 ........... 31,04
Đáp án
Exam number 1: Choose the increasing value. (Chọn các giá trị theo thứ tự tăng dần)
0,01 < 0,03 < 0,04 < 0,05 < 0,06 < 0,08 < 0,09 < 0,12 < 0,21 < 0,23 < 0,32 < 0,34 < 0,43
< 0,54 < 0,56 < 0,65 < 0,67 < 0,87 < 0,89 < 0,98
Exam number 2:
Question 1: b

Question 5: c

Question 2: a

Question 6: a

Question 3: c

Question 7: b

Question 4: c
Question 8: c
Exam number 3: Fill in the blank with the suitable number.
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Question 1: 100

Question 6: 5,002

Question 2: 0,001

Question 7: 80

Question 3: 4

Question 8: 120

Question 4: 9,265

Question 9: >

Question 5: 4,58

Question 10: =

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Đề thi Violympic Toán Tiếng Anh lớp 5 vòng 6 năm 2015 - 2016
Exam number 1: Choose 2 consecutive cells which have the same or equal value.
(Tìm cặp bằng nhau)

Exam number 2: Vượt chướng ngại vật
Question 2.1:

The missing number is ...........
a. 5.9

b. 8.3

c. 6.3

d. 3.8

Question 2.2: Find the value of y such that 19.5 + y = 32.6
a. 52.1

b. 14.1

c. 51.1

d. 13.1

Question 2.3: Count back by 0.5
2.7

P

The value of P is ..........
a. 3.7

b. 1.2

c. 1.7

d. 4.2

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Question 2.4:

Q

0.9

The value of Q is ...........
a. 0.6

b. 1.1

c. 1.0

b. 0.7

Question 2.5: Calculate: 1.34 + 2.34 + 3.34 + ...... + 20.34 = .........
a. 205.96

b. 195.12

c. 227.64

d. 216.8

Question 2.6:

Rule: Add 13.85. The missing number is ..............
a. 54.44

b. 53.44

c. 80.14

d. 81.14

Question 2.7:

Rule: Substract 15.24. The missing number is ...........
a. 49.42

b. 19.84

c. 48.52

d. 18.94

Question 2.8: Which of following decimals is equal to 3/8?
a. 0.35

b. 0.375

c. 0.3

d. 0.357

Question 2.9: Write these numbers in standard form: 21.3 = 20 + 1 + 0.3
Which of following is true?
a. 149.34 = 100 + 40 + 9 + 0.34
b. 127.06 = 120 + 7 + 0.06
c. 105.9 = 100 + 5 + 0.9
d. 280.2 = 200 + 8 + 0.2
Question 2.10: Count on by 0.3

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N

4.7

The value of N is ............
a. 4.1

b. 3.5

c. 3.8

d. 4.4

c. 0.08

b. 0.6

c. 8

d. 7

Question 2.11: 10 + ..... + 8 = 18.06
The missing number is .............
a. 0.06

b. 0.8

Question 2.12: Find the value of a if

a. 9

b. 1

Exam number 3: Fill in the blank with the suitable number (Note: write decimal number
with "the dot" between number part and fraction part. Example: 0.5)
Question 3.1: If n = 23.54 then n x 9 = ...............
Write your answer by decimal in the simplest form
Question 3.2: If a x b = 42.63 then b x a = ..........
Question 3.3:

The missing decimal number is ...........
Question 3.4: Multiply: 3.56 x 8 = .......... Write your answer by decimal in the simplest
form.

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Question 3.5: This table shows the weights of Peter's three dogs.

The product of the combined weight of Shadow and Josie and the weight of Brody
is ............. kg.
Question 3.6: If a = 2.4; b = 5.6 and c = 7.6 then (a + b) x c = ......... Write your answer by
decimal in the simplest form.
Question 3.7: The cost of 2 kilograms of oranges is 2.31 dollars. What is the cost of 12
kilograms of oranges?
Question 3.8: Calculate: 0.4 x 8.4 x 2.5 = ............
Fill in the blank with the suitable sign (>, =, <)

Question 3.9: Compare:

M = 25.36 x 25.34 and P = 25.35 x 25.35

Question 3.10: Compare: A = 26.26 x 4949.49 and B = 49.49 x 2626.26
ĐÁP ÁN

Exam number 1: Choose 2 consecutive cells which have the same or equal value. (Tìm
cặp bằng nhau)
(1) = (5); (2) = (4); (3) = (19); (6) = (10); (7) = (8); (9) = (20); (11) = (12); (13) = (15);
(14) = (18); (16) = (17)
Exam number 2: Vượt chướng ngại vật
Question 2.1: b

Question 2.4: b

Question 2.2: d

Question 2.5: d

Question 2.3: b

Question 2.6: b

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Question 2.7: a

Question 2.10: c

Question 2.8: b

Question 2.11: a

Question 2.9: c
Question 2.12: c
Exam number 3: Fill in the blank with the suitable number
Question 3.1: 211.86
Question 3.2: 42.63
Question 3.3: 9.2
Question 3.4: 28.48
Question 3.5: 44.7
Question 3.6: 60.8
Question 3.7: 13.86
Question 3.8: 8.4
Question 3.9: <
Question 3.10: =

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