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

The value of P is ..........

a. 3.7            b. 1.2             c. 1.7         d. 4.2

Question 2.4: Count back by 0.1

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

The value of N is ............

a. 4.1           b. 3.5             c. 3.8          d. 4.4

Question 2.11: 10 + ..... + 8 = 18.06

The missing number is .............

a. 0.06          b. 0.8              c. 0.08       d. 0.6

Question 2.12: Find the value of a if

a. 9            b. 1               c. 8             d. 7

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.

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 đề thi Violympic Toán Tiếng Anh lớp 5 vòng 6

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 2.2: d        Question 2.3: b         Question 2.4: b

Question 2.5: d        Question 2.6: b       Question 2.7: a         Question 2.8: b

Question 2.9: c        Question 2.10: c      Question 2.11: a        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: =

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

Question 3: Convert 3,25kg = ........... g.

a. 0,325        b. 325            c. 3250        d. 32,5

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

a. 34         b. 3,4             c. 0,34         d. 0,034

Question 5: Convert 5.03m = ............cm.

a. 50,3         b. 0,503         c. 503          d. 5030

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?

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

Question 1: Choose the calculation that has the greatest result.

a. 125,7 : 3 + 14,3

b. 365,5 : 5 - 17,8

c. 59,8 : 2 + 26,13

d. 196,4 : 4 - 7,07

Question 2: Peter counts his heart rate. He counts 8 beats per 6 seconds on average. How many beats per minute does Peter count?

a. 75                     b. 140                    c. 60                 d. 80

Question 3: Which fraction is equal to 17,5%?

a. 35/20                   b. 7/40                    c. 35/50              d. 175/100

Question 4: Mia wants to buy apple. Which is the best buy?

a. 7kg of apples for $30,38

b. 5kg of apples for $21,5

c. 6kg of apples for $26,1

d. 4kg of apples for $17,32

Question 5: The product: 20 x 21 x 22 x ..... x 40 has ....... digit 0.

a. 4                  b. 6              c. 5                    d. 3

Question 6: Which shape is colored more than 50% in green?

Question 7: If number A is increased by 60% then it will equal number B. How much percentage will B be decreased by to equal A?

a. 40%             b. 62,5%               c. 37,5%             d. 60%

Question 8: Find the smallest number that is 7 times the sum of its digits?

a. 28              b. 21                   c. 14                d. 35

Question 9: Calculate:Choose the correct answer:

a. 767/768         b. 711/768                c. 255/256             d. 85/256

Question 10: How many fractions equal 1/5 and have denominators of 2 - digit numbers?

a. 16             b. 18                   c. 22                 d. 20

Exam number 2: Your car has to pass 5 obstacles to finish. In order to overcom each obstacle, you have to answer correctly one of three problems in that obstacle. (Vượt chướng ngại vật)

Question 1: If and n is a natural number then n = ...........

Question 2: 

The perimeter of the shape is ....... cm.

Question 3: Find X if X x 8,6 - 5,2 x X - 11,06 = 5,94

Question 4: Calculate: 5,5 x (3,5 - 1,5) + 1,5 = ..............

Question 5: Calculate: 

Exam number 3: Find the blank with the suitable number

(Note: write decimal number with the comma" between number part and fraction part. Ex: 0,5)

Question 1: 5,136m³ = ............ cm³.

Question 2: 47/250 dm³ = ............. cm³.

Question 3: The perimeter of a circle is 15,7dm. Its area is ....... cm².

Question 4: Jane bought a couch. A couch costs 950 dollars. She received a 30% discount. How much of a discount did she get?

Question 5: The ratio of the number of girls to the number of boys in a classroom is 5 : 4. When 10 girls left the classroom, the ratio of the number of boys to the number of girls became 4 : 3. How many students were in the classroom at first?

Question 6: The area of a rectangle is 50m2. If it's length is increased by 10% and it's width is decreased by 20% then the area of new rectangle is ...............m².

Question 7: An aquarium is 8dm deep, 12dm long and 0,3m wide. What is the volume of the aquarium in cubic centimeter?

Question 8:

The sum of all square's area in the following figure is 375cm2. The area of the biggest square is ............ dm2.

Question 9: At a party 60% of the boys are dancing with 80% of the girls. How many people are dancing if there are 35 people? (A pair cludes only one boy and one girl)

Question 10:

Look at the following figure. AF/AB = 1/4; AE/AC = 1/3. If the area of triangle GBD is 270m² then the area of the triangle GCD is .......... m².