Đề thi giải Toán Tiếng Anh qua mạng lớp 5 có đáp án
Đề thi giải Toán Tiếng Anh qua mạng lớp 5 các vòng có đáp án được sưu tầm với các dạng đề thi khó, giúp các em học sinh có thêm tài liệu học tập và luyện thi. Từ đó, các em sẽ có cách nhìn toàn diện về kiến thức và kĩ năng cần nắm vững trước khi bước vào kì thi ViOlympic Tiếng Anh với tâm thế vững vàng nhất.
[external_link_head]Đề thi Violympic Toán Tiếng Anh lớp 5 vòng 9
Exam number 1: Choose the most suitable answer in 4 available answers. (Cóc vàng tài ba)
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.
Đáp án đề thi Violympic Toán Tiếng Anh lớp 5 vòng 9
Exam number 1: Choose the most suitable answer in 4 available answers. (Cóc vàng tài ba)
Question 1: a
Question 2: d
Question 3: b
Question 4: b
Question 5: b
Questionc 6: d
Question 7: c
Question 8: b
Question 9: d
Question 10: b
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: 25
Question 2: 80
Question 3: 5
Question 4: 12,5
Question 5: 4
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: 5136000
Question 2: 188
Question 3: 1962,5
Question 4: 285
Question 5: 45
Question 6: 44
Question 7: 28800
[external_link offset=1]Question 8: 2
Question 9: 24
Question 10: 180
Đề thi Violympic Toán tiếng Anh lớp 5 vòng 8
Exam number 1: Đi tìm kho báu
Question 1: There are 40 students in Mrs. Brown's class. 25% of her students received a B on the test. How many students received a B?
a. 10 b. 12 c. 18 d. 20
Question 2: What is the product of 3.05 and 2.8?
a. 8.54 b. 8.056 c. 8.56 d. 8.054
Question 3: A clothing shop is having a 40% off sale. How much would Jane have to pay for a $30 sweater with a 40% discount?
a. $18 b. $20 c. $50 d. $13
Question 4: If a pen costs $1.75 and an eraser costs $0.85, which of the following is the cost of 10 erasers and 5 pens?
a. $21.75 b. $26 c. $18.75 d. $17.25
Question 5: If the area of the rectangle ABCD is 60cm2 then the area of the trapezoid MNCD is ..........cm2.
a. 48 b. 50 c. 45 d. 54
Exam number 2: Tìm cặp bằng nhau
Exam number 3: Fill in the blank with the suitable number
Question 1 The length of each edge of a cube is 3 cm. The surface area of the cube, in cm2, is .............
Question 2: At the beginning of the summer, Bob was 140 cm tall. At the end of the summer, he measured his height again and discovered that it had increased by 5%. Measured in cm, what was his height at the end of summer?
Question 3: The number of centimetres in 7.05 metres is ...............
Question 4: Bella scores on six of her eight pictures. The percentage of pictures that she does not score on is .........%.
Question 5: A bag contains green marbles and red marbles only. If the ratio of the number of green marbles to the number of red marbles is 1:4 then ............% of marbles are green.
Question 6: How many even numbers between 1 and 100 are divisible by 5?
Question 7: Alice is going to the store. One third of the way to the store, she stops to talk with Kelly. She then continues for 6 km and reaches the store. How many kilometres does she travel?
Question 8: How many three-digit numbers are exactly 19 more than a two-digit number?
Question 9: In the 3×3 table shown, the numbers 2, 4 and 6 are placed so that each number occurs only once in each row and only once in each column. The value of M + N is ............
Question 10: How many different 3-digit whole numbers can be formed using the digits 4, 5, 0 and 8, assuming that no digit can be repeated in a number?
ĐÁP ÁN
Exam number 1: Đi tìm kho báu
Question 1: a
Question 2: a
Question 3: a
Question 4: d
Question 5: b
Exam number 2: Tìm cặp bằng nhau
(1) = (6); (2) = (4); (3) = (12); (5) = (13); (7) = (10); (8) = (14); (9) = (20); (11) = (19); (15) = (17); (16) = (18)
Exam number 3: Fill in the blank with the suitable number
Question 1: 54
Chiều dài một cạnh của một khối lập phương là 3cm.
Diện tích bề mặt của khối lập phương là 3 x 3 x 6 = 54 (cm2)
Question 2: 147
Question 3: 705
Question 4: 25
Question 5: 20
Question 6: 9
Question 7: 9
Question 8: 19
Có bao nhiêu số có 3 chữ số mà lớn hơn một số có 2 chữ số 19 đơn vị?
Các số có 3 chữ số mà lớn hơn một số có 2 chữ số 19 đơn vị là: 81; 82; 83; ........; 99
Số các số thỏa mãn là: (99 - 81) : 1 + 1 = 19 (số)
Đáp số: 19 số
Question 9: 6
Question 10: 18
Đề thi Violympic Toán tiếng Anh lớp 5 vòng 7
BÀI THI SỐ 1 – ĐẬP DẾ
Câu 6: Find x: x × 100 = 505
a/ x = 5.5 b/ x = 50.5 c/ x = 5.05 d/ x = 0.505
Hướng dẫn
x × 100 = 505
x = 505 : 100
x = 5.05
Chọn c
Câu 7: Calculate: 9.28 : 4 = …
a/ 2.3 b/ 2.32 c/ 2.23 d/ 2.33
Chọn b
Câu 8: What percentage is 35 of 40?
a/ 87.5% b/ 45% c/ 30.5% d/ 65%
Hướng dẫn
Tỉ số phần trăm của 35 và 40 là: 35 : 40 x 100% = 87.5%
Chọn a
Câu 9: They are 40 students in the class 5A and 55% of them are boys. How many boys are there?
a/ 18 boys b/ 17 boys c/ 22 boys d/ 23 boys
Hướng dẫn
Chọn c
Câu 10: Calculate: tính: 11.5 x 4.5 = ….
a/ 517.5 b/ 51.75 c/ 44.75 d/ 447.5
Bài thi số 2 – ĐỪNG ĐỂ ĐIỂM rơi
Câu 1: Convert: 3dm2 = ….m2.
Điền: 300
Câu 2: Calculate:
(Write your answer as fraction in simplest form a/b)
Điền: 1/2
Câu 3: Calculate: 8.57 – 2.1 = …
(Write your answer as decimal in simplest form)
Điền 6.47
Câu 4: Calculate: updating = …
(Write your answer as decimal in simplest form)
Điền: 6.83
Câu 5: Convert: 2 tons 512 kg = …. Tons
(Write your answer as decimal in simplest form)
Điền: 2.512
Câu 6: Quang’s garden has 200 trees, including 78 mango trees and the rest are guava trees. What percentage of trees in Quang’s garden are mango trees?
Answer: ………%
Điền 39
BÀI THI SỐ 3 – LEO DỐC
Câu 1: Find x if: x + 9.37 = 31.04
A – 20.76 B – 23.67 C – 21.67 D – 39.41
Hướng dẫn
x + 9.37 = 31.04
x = 31.04 – 9.37
x = 21.67
Chọn C
Câu 3: Which of following numbers is divisible by 3?
A – 646 B – 327 C – 496 D – 523
Chọn B
Câu 4: Calculate: 0.025 x 400 = …
A – 25 B – 1 C – 100 D – 10
Câu 7: Find two numbers if their sum is 13.96 and their difference is 2.72
A – 7.62 and 6.34 B – 8.34 and 5.62
C – 8.27 and 5.69 D – 9.16 and 4.8
Hướng dẫn
Số lớn là: (updating) : 2 = 8.34
Số bé là: 8.34 – 2.72 = 5.62
Chọn B
Câu 10: If x x 302 = 64326 then x = ….64326 : 302 = 213
a/ 206 b/ 213 c/ 216 d/ 312
Chọn b
Câu 11: Find the value of x such that x + 47.92 = 89.27 .
Hướng dẫn
x + 47.92 = 89.27
x = 89.27 – 47.92
x = 41.35
Answer: x = 41.35
Đề thi Violympic Toán tiếng Anh lớp 5 vòng 2
Question 1: Find equal values. (Tìm các cặp giá trị bằng nhau)
Answer:
(2) = ...........; (4) = ..........; (5) = ..........; (8) = ..........; (9)= ..........; (11) = ..........; (13) = ..........; (14) = ..........; (15) = ........; (20) = .........;
[external_link offset=2]Question 2:
Question 2.1:
Compare 7/updating/3
Fill in the blank with the suitable sign (>, <, =)
Fill in the blank with the suitable number.
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
Answer: ............
Question 2.5:
Write the equivalent fraction of 3/8 with a denominator of 1000.
Answer: 3/8 = M/1000 with M = ...............
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
Question 3.2:
The missing number is .............
A. 440
B. 420
C. 4200
D. 4400
Question 3.3:
A. 5/2
B. 14/11
C. 6(3/8)
D. 77/8
Question 3.4:
The value of is ..............
A. 3/97
B. 5/97
C. 5/99
D. 33
Đáp án:
Question 1: Find equal values. (Tìm các cặp giá trị bằng nhau)
(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 2.2: 11
Question 2.3: 125
Question 2.4: 2
Question 2.5: 375
Question 2.6: 6
Question 2.7: 72
Question 2.8: 2040
Question 2.9: 0
Question 2.10: 3333
Question 3:
Question 3.1: C. 9/20
Question 3.2: D. 4400
Question 3.3: B. 14/11
Question 3.4: D. 33
Đề thi Violympic Toán Tiếng Anh lớp 5 vòng 1
I. Tìm cặp bằng nhau
II. Đi tìm kho báu
Question 1: What is the perimeter of a rectangle with sides 5cm by 4cm?
Question 2: Find the sum of numbers that are greater than 50 in the following table.
Question 3: If subtracting 19 from the greatesst 2 - digit number and then dividing the difference by 4, we get the result ...
A) 19 B) 20 C) 40 D) 20.25
Question 4: There are 38 students in the class 5A. The students can be sit at 11 tables with no empty seats. There are small table for 3 students and large tables for 4 students. How many small tables and large tables in the class?
Question 5: The perimeter of a square is 80cm. What is the measure of each side?
III. Sắp xếp các ô có giá trị tăng dần
Đáp án đề thi Violympic Toán Tiếng Anh lớp 5 vòng 1
I. Tìm cặp bằng nhau
(1) = (18); (2) = (15); (3) = (12); (4) = (8); (5) = (14); (6) = (17); (7) = (10); (9) = (16); (11) = 19); (13) = (20)
II. Đi tìm kho báu
Question 1: 18
Question 2: 120
Question 3: b
Question 4: 6; 5
Question 5: 20
III. Sắp xếp các ô có giá trị tăng dần
(10) < (4) < (13) < (9) < (16) < (20) < (12) < (3) < (11) < (15) < (2) < (6) < (19) < (18) < (1) < (7) < (5) < (17) < (8) < (14)
Đề thi Violympic Toán Tiếng Anh lớp 5 vòng 1 năm updating trực tuyến
Bộ đề thi Violympic Toán tiếng Anh lớp 5 tất cả các vòng có đáp án (1)
Bộ đề thi Violympic Toán tiếng Anh lớp 5 tất cả các vòng có đáp án (2)
Bộ đề thi Violympic Toán tiếng Anh lớp 5 tất cả các vòng có đáp án (3)[external_footer]
