Đề thi Violympic Toán Tiếng Anh lớp 4 vòng 10 năm 2014 - 2015

Đề thi Violympic Toán Tiếng Anh lớp 4 vòng 10 năm 2014 - 2015 tài liệu, giáo án, bài giảng , luận văn, luận án, đồ án, b...

Đề thi Violympic Toán Tiếng Anh lớp 4 vòng 10 năm 2014 - 2015 Exam number 1: Fill in the blank with the suitable sign (>, <, =)

Question 1: 4567/6789 3456/5678

Fill in the blank with the suitable number:

Question 2: Professor Ngo Bao Chau was born in 1972 He was born in the th century

Question 3: 1818/2727 of 2376 is

Question 4: Find x such that: x + 17 x 12 = 216

Question 5: Three oranges are weighted in pairs and these weights are 400; 412; and 424 gram What is the weight of the lightest orange?

Answer: The weight of the lightest orange is gram

Question 6: The area of a rectangle increased by 57cm2when each side increases by 3cm The perimeter of the origial rectangle is cm

Question 7: How many 4 - digit numbers can you make by using only 0 and 1?

Answer: There are numbers

Question 8: Some men meet at a conference Each man shakes hands with each other exactly once If there are 4950 handshakes in total then the number of men is Question 9: In the equation: N x U x (M + B + E + R) = 33, six letters are 6 distinct digits from 0 to 9 What is the greatest possible value of the number NUMBER?

Question 10: The sum of the digits of all 2-digit numbers is

Exam number 2: Choose the most suitable answer in 4 available answers (Cóc vàng tài ba)

Question 1: Which of the following numbers can represent the question mark?

Question 2: Which of the following numbers is divisible by 6?

Question 3: Which of the following is the number 2,003,047?

a Two million, three thousand, fourty seven

b Two million, thirty thousand, four seven

c Two million, three thousand, four seven

d Two million, thirty thousand, fourty seven

Question 4: Find the value of

The value of A is

Question 5: Jonn uses 1/3 of his land for growing apples, 1/4 for oranges, 1/5 for bananas and the remaining 13 hectares for flowers The total area of his land is hectares

Question 6: Find the value of B = 2016 x 20152015 - 2015 x 20162015

Answer: The value of B is

a 2015 b 2016 c 20152016 d 20162015

Question 7: The product of 2 natural numbers is 2015 Find the smallest possible sum of these two numbers?

Answer: The smallest possible sum of these numbers is

Question 8: Peter, Bob and Jack do a work If they work in pairs: Peter and Bob can complete it in 12 hours; Bob and Jack can complete it in 10 hours; Jack and Peter can complete it in 15 hours Peter needs hours to complete this work by himself

Question 9: One chain with 3 links is 14cm long Another chain made from 5 links of the same type is 22cm long How long is a chain with 40 such links?

Answer: A chain with 40 such links is

a 162cm long

b 158cm long

c 160cm long

d 155cm long

Question 10: Find the missing number x in the following number sequence:

Answer: x is

Exam number 3: Vượt chướng ngại vật

Question 1: Fill in the blank with the correct number

35km + 700cm = m

Question 2: 765 - = 123 x 2 + 276

The correct number filled in the blank is

Question 3: How many triangles in the following figure?

Answer: There are triangles

Question 4: Find the value of digit x if 2006 < 20x5 < 2041 and 20x5 is divisible by 3? Answer: The value of x is

Question 5: Find the greatest natural number m such that:

23

21 5

8 17





m

Answer: m =

Đáp án

Exam number 1: Fill in the blank with the suitable sign (>, <, =)

Question 1: >

Question 2: 20

Question 3: 1584

Question 4: 12

Question 5: 194

Question 6: 32

Question 7: 8

Question 8: 100

Question 9: 315420

Question 10: 855

Exam number 2: Choose the most suitable answer in 4 available answers (Cóc vàng tài ba)

Question 1: a

Question 2: c

Question 3: a

Question 4: a

Question 5: a

Question 6: a

Question 7: a

Question 8: b

Question 9: a

Question 10: c

Exam number 3: Vượt chướng ngại vật

Question 1: 35007

Question 2: 243

Question 3: 15

Question 4: 2

Question 5: 6