Tổng hợp 1 số Đề thi Violympic Toán Tiếng Anh lớp 4 ĐỀ 1: Bài 1: Fill in the blank with the suitable number Question 1: How many hours are there in 4 days? Question 2: Calculate: 672g – 276g = ........... g. Question 3: How many years are in 3 century? Question 4: There are ................ days in May. Question 5: Emily write down how many kilometers she walked each day. How many kilometers did she walk on Sunday? Question 6: 765 + … = 459 + 541 The missing number is .......... Question 7: Write forty-six thousand and fifty using digits. Bài 2: Cóc vàng tài ba: Choose the most suitable answer in 4 available answers. Question 1: 1/4 century = ........... years. The missing number is .............. A. 20 B. 30 C. 25 Question 2: What time does the clock shown? D. 15 A. 6: 20 B. 4: 06 C. 4: 30 D. 6: 25 C. 217 D. 227 Question 3: Find x such that x + 215 = 432 A. 657 B. 647 Question 4: 5kg = ........... g. The missing number is ............... A. 5000 B. 50 C. 50000 D. 500 Question 5: A. 75 B. 79 C. 77 D. 76 Question 6: 5250g + 1750g = ............kg. The missing number is .............. A. 7 B. 100 C. 70 D. 10 Question 7: If m = 7 then 2000 x 3 + 2000 x m = .......... A. 9000 B. 20000 C. 2000 D. 20000 Question 8: The average of 75 and M is 82. The value of M is ............ A. 89 B. 86 C. 85 D. 79 Question 9: Today is September 2nd, four days ago is ............ A. August 28th Question 10: B. August 30th C. August 29th D. August 27th A. 6 B. 3 D. 5 C. 4 ĐÁP ÁN Bài 1: Fill in the blank with the suitable number Question 1: 96 Question 2: 396 Question 3: 300 Question 5: 8 Question 6: 235 Question 7: 46050 Question 4: 31 Bài 2: Cóc vàng tài ba: Choose the most suitable answer in 4 available answers. Question 1: C Question 2: C Question 3: C Question 5: C Question 6: A Question 7: B Question 8: A Question 9: C Question 10: D Question 4: A Đề 2 Exam number 1: Fill in the blank with the suitable number. Question 1: How many days are there in September? Answer: There are .............. days. Question 2: Find x such that x : 5 = 1537 Answer: x = .......... Question 3: Mary learns fifteen new words per day. How many new words does she learn for seven days? Answer: ......... days. Question 4: The area of the following rectangle is ............ cm2. Question 5: The perimeter of the following square is .................cm. Question 6: Calculate: (12639 + 21034) x 2 = ........... Question 7: Bella goes to the zoo. She makes a table of the number of animals at the zoo. (see the table below) How many monkeys and birds are there? Answer: ........... Question 8: Calculate: 9876 : 6 x 6 = .......... Question 9: How many right angles are there? Answer: There are ............ right angles. Question 10: There are 48 strawberries in 6 bags. How many strawberries are there in 9 bags? Answer: There are ............. strawberries in 9 bags. Exam number 2: Choose the most suitable answer in 4 available answers. Question 1: Calculate: 6723 - 2195 = ......... A. 4258 B. 4285 C. 4528 D. 4582 Question 2: Emma is 14 years old. Her sister's age is 11 years more than her age. How old is Emma's sister? Answer: Emma's sister is ............. years old. A. 25 B. 23 C. 13 D. 15 Question 3: What time does the clock show? A. 2 : 50 B. 2 : 10 C. 10 : 20 D. 10 : 10 Question 4: Mary goes swimming in the morning. What time can she go swimming? A. 10:00 a.m B. 16:00 C. 6:00 p.m D. 14:00 Question 5: Which number can replace the question mark? 400 x ? + 800 = 2000 A. 3 B. 6 C. 30 D. 60 Question 6: Find the value of x such that x + 1606 = 2357. Answer: x = ......... A. 751 B. 715 C. 716 D. 761 Question 7: Today is Thursday, December 17. Which day of the week is the day before yesterday? A. Wednesday B. Tuesday C. Friday D. Saturday Question 8: Two numbers have the product of 9315. If the product is five times as same as the greater number. The smaller number is .......... A. 1863 B. 4 C. 1763 D. 5 ĐÁP ÁN Exam number 1: Fill in the blank with the suitable number. Question 1: How many days are there in September? Answer: There are .............. days. 30 Question 2: Find x such that x : 5 = 1537 Answer: x = .......... 7685 Question 3: Mary learns fifteen new words per day. How many new words does she learn for seven days? Answer: ......... days. 105 Question 4: The area of the following rectangle is ............ cm2. 135 Question 5: The perimeter of the following square is .................cm. 492 Question 6: Calculate: (12639 + 21034) x 2 = ........... 67346 Question 7: Bella goes to the zoo. She makes a table of the number of animals at the zoo. (see the table below) How many monkeys and birds are there? Answer: ........... 539 Question 8: Calculate: 9876 : 6 x 6 = .......... 9876 Question 9: How many right angles are there? Answer: There are ............ right angles. 5 Question 10: There are 48 strawberries in 6 bags. How many strawberries are there in 9 bags? Answer: There are ............. strawberries in 9 bags. 72 Exam number 2: Choose the most suitable answer in 4 available answers. Question 1: Calculate: 6723 - 2195 = ......... C. 4528 Question 2: Emma is 14 years old. Her sister's age is 11 years more than her age. How old is Emma's sister? Answer: Emma's sister is ............. years old. A. 25 Question 3: What time does the clock show? D. 10 : 10 Question 4: Mary goes swimming in the morning. What time can she go swimming? A. 10:00 a.m Question 5: Which number can replace the question mark? 400 x ? + 800 = 2000 A. 3 Question 6: Find the value of x such that x + 1606 = 2357. Answer: x = ......... A. 751 Question 7: Today is Thursday, December 17. Which day of the week is the day before yesterday? B. Tuesday Question 8: Two numbers have the product of 9315. If the product is five times as same as the greater number. The smaller number is .......... A. 1863 ĐỀ 3 1) 36 The average of 46; 25 and 37 2) ¼ century = … a) 15 years. is …. a) 38 b) 31 c) 35 d) The missing number is … b) 20 c) 30 d) 25 3) What time does the clock shown? a) 6: 20 b) 6: 25 4) 5 kg = … g. a) 50 c) 4: 30 d) 4: 06 The missing number is … b) 5000 c) 500 d) 50000 5) In his English class, Harry has 5 tests. His scores is shown in the table below. Test 1: 78; a) 75 test 2: 67; b) 77 test 3: 79; test 4: 86; c) 79 test 5: 75 d) 76\ 6) Bella earns $40 per day. She will earn $... in 5 days. a) 150 b) 200 c) 100 d) 45 7) The average of two number is 13. One of these number is the least 2-digit number. The smaller number is … a) 26 b) 16 c) 3 d) 10 8) The average of 75 and M is 82. The value of M is … a) 79 b) 89 c) 86 d) 85 9) 36 minutes 23 seconds + … = 45 minutes 15 seconds. What time can fill in the blank? 10) a) 9 minutes 8 seconds b) 8 minutes 8 seconds c) 8 minutes 52 seconds d) 9 minutes 52 seconds Today is September 2nd. Four days ago is … a) August 27th b) August 28th c) August 30th ĐỀ 4 Exam number 1: Fill in the blank with the suitable sign (>, <, =) Question 1: 4567/6789 ............ 3456/5678 d) August 29th 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 Answer: x = ........... 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 57cm2 when 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? Answer: ............. 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? a. 48 b. 45 c. 54 d. 36 Question 2: Which of the following numbers is divisible by 6? a. 33332 b. 25760 c. 42378 d. 12357 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 .......... a. 1007 b. 4006/2015 c. 2015 d. 4002/2015 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. a. 60 b. 70 c. 50 d. 80 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 ............... a. 96 b. 65 c. 408 d. 2016 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. a. 18 b. 40 c. 24 c. 42 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: 2 9 18 25 x 57 114 121 Answer: x is .......... a. 32 b. 34 c. 50 d. 45 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: Answer: m = ............ ĐÁP ÁN 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. 20 Question 3: 1818/2727 of 2376 is ........... 1584 Question 4: Find x such that: x + 17 x 12 = 216 Answer: x = ........... 12 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. 194 Ba quả cam được cân theo cặp và cân nặng cân được là: 400; 412 và 424g. Hỏi cân nặng của quả cam nhẹ nhất là bao nhiêu? Question 6: The area of a rectangle increased by 57cm2 when each side increases by 3cm. The perimeter of the origial rectangle is ............. cm. 32 Diện tích của một hình chữ nhật tăng thêm 57cm2 khi mỗi cạnh tăng thêm 3cm. Chu vi của hình chữ nhật gốc là: .................cm. Question 7: How many 4 - digit numbers can you make by using only 0 and 1? Answer: There are ......... numbers. 8 Có bao nhiêu số có 4 chữ số được tạo thành từ 0 và 1? 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 .............. 100 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? Answer: ............. 315420 Trong phép tính: N x U x (M + B + E + R) = 33, 6 chữ cái là 6 chữ số riêng biệt từ 0 đến 9. Hỏi giá trị số lớn nhất có thể của chữ NUMBER là bao nhiêu? Question 10: The sum of the digits of all 2-digit numbers is ............. 855 Tổng các chữ số của tất cả các số có 2 chữ số là: ......... 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? a. 48 Question 2: Which of the following numbers is divisible by 6? c. 42378 Question 3: Which of the following is the number 2,003,047? a. Two million, three thousand, fourty seven Question 4: Find the value of The value of A is .......... a. 1007 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. a. 60 Question 6: Find the value of B = 2016 x 20152015 - 2015 x 20162015 Answer: The value of B is ......... a. 2015 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 ............... a. 96 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. b. 40 Peter, Bob và Jack cùng làm một công việc. Nếu họ làm theo cặp: Peter và Bob có thể hoàn thành nó trong vòng 12 giờ; Bob và Jack có thể hoàn thành trong 10 giờ; Jack và Peter có thể hoàn thành trong 15 giờ. Peter cần ......... giờ để một mình hoàn thành công việc này. 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 Question 10: Find the missing number x in the following number sequence: 2 9 18 25 x 57 114 121 Answer: x is .......... c. 50 Exam number 3: Vượt chướng ngại vật Question 1: Fill in the blank with the correct number 35km + 700cm = ......... m 35007 Question 2: 765 - ........ = 123 x 2 + 276 The correct number filled in the blank is ........... 243 Question 3: How many triangles in the following figure? Answer: There are ................ triangles. 15 Question 4: Find the value of digit x if 2006 < 20x5 < 2041 and 20x5 is divisible by 3? Answer: The value of x is ................ 2 Question 5: Find the greatest natural number m such that: Answer: m = ............ 6 ĐỀ 5 Exam number 1: Choose the most suitable answer in 4 available answers. Question 1: The value of expression: a. 1008 b. 4007/2016 is .................. c. 504 Question 2: The area of the following rhomus is ............ d. 2017/2016 |