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Đề thi Violympic Toán Tiếng Anh lớp 4 vòng 9 năm 2014 - 2015Exam number 1: Fill in the blank with the suitable numberQuestion 1: Mary reads four books every month. She is busy and reads only one book onMarch. On September, she takes a break and does not read any books. What is thenumber of books that Anna reads in one year?Question 2: Four boxes of chocolate candies are equivalent to eight hundred candies. Thenumber of candies is the same for all boxes. How many candies are in each box?Question 3: If y is a natural number and y/9 < 7/12 then the greatest value of y is ...........Question 4: 5/4 of 2 kg is ........... g.Question 5: Calculate: (247 x 315 + 246 x 314) x (98 x 47 - 94 x 49) = ............Question 6: If x is a natural number and 7/9 < x/12 then the smallest value of x is ............Question 7: The product of four consecutive natural numbers is 570024. Their sumis ...............Question 8: The smallest number such that the product of all it's digits is 20 is ............Question 9: If B is not divisibly by 24 and B is the greatest 5-digit number that the sum ofall digits is 21 then B = ...........Question 10: If 324/483 = 108/x then the value of x is ...............Exam number 2: Help the Miners to go through the maze by answering questions toreach the destination. (Đi tìm kho báu)Question 1: Calculate:Question 2: Add and simplify your answer: 1/5 + 3/10 + 1/2 = .............Question 3: Find x ifQuestion 4: Calculate: 7/45 + 5/3 - 7/5 = ...........Question 5: Find y if y x 168 = 23 + 25 + 27 + ..... + 105Exam number 3: Choose the most suitable answer in 4 available answers. (Cóc vàngtài ba)Question 1: Which of the following calculations euqals 5/36?a. 1/2 + 1/3 x 1/6b. 1/9 + 5/12 - 7/18c. (1/2 + 1/3) : 1/6d. 1/2 + 1/3 : 1/6Question 2: Jane bought 4 products on 2 types. Their price was shown in the table:VnDoc - Tải tài liệu, văn bản pháp luật, biểu mẫu miễn phíShe paid $80 and had $5 left. How many products on type 1 did she buy?a. 1b. 4c. 3d. 2Question 3: Which of the following fractions is the greatest?a. 8/15b. 7/12c. 17/30d. 1/2Question 4: Sara's car weighs 41/6 tons and Anna's car weighs 3 tons. Which of thefollowing statements is true?a. Anna's car weighs 25/6 tons more than Sara's car.b. Sara's car weighs 25/6 tons more than Anna's car.c. Anna's car weighs 23/6 tons more than Sara's car.d. Sara's car weighs 23/6 tons more than Anna's car.Question 5: The sum of odd numbers from 823 to 2015 is ..............a. 818763b. 847143c. 845724d. 844305Question 6: Let A = abc x dec. Which of the following numbers can not be A?a. 40302b. 27336c. 53064d. 72541Question 7: Which of the following numbers is in the sequence: 25; 28; 31; 34; 37; ..........a. 2014b. 22c. 1235d. 16Question 8: Bob buys three times as many apples as Peter. Mia buys 7 apples more thanBob and 19 apples more than Peter. How many apples do they buy together? Choose thecorrect answer.a. 26 applesb. 37 applesc. 49 applesd. 51 applesQuestion 9: How many natural numbers between 1000 and 4000 are there for which thethousands digit equals the sum of the other three digits?a. 20b. 19c. 16d. 12Question 10: Let M = 91011121314..... (M is written by consecutive natural numbers)If M has 175 digits then when M divided by 5, the remaider is ..........a. 2b. 1c. 0d. 3Đáp ánExam number 1: Fill in the blank with the suitable numberQuestion 1: 41VnDoc - Tải tài liệu, văn bản pháp luật, biểu mẫu miễn phíMary đọc 4 cuốn sách mỗi tháng. Cô ấy rất bận và chỉ đọc một cuốn vào tháng Ba. Vàotháng 9, cô ấy nghỉ ngơi và không đọc bất kỳ cuốn sách nào. Hỏi số sách mà Anna đã đọctrong một năm là bao nhiêu?Question 2: 200Question 3: 5Question 4: 2500Question 5: 0Question 6: 10Question 7: 142503Question 8: 299Question 9: 99300Question 10: 161Exam number 2: Help the Miners to go through the maze by answering questions to reachthe destination. (Đi tìm kho báu)Question 1: 0Question 2: 1Question 3: 1/20Question 4: 19/45Question 5: 16Exam number 3: Choose the most suitable answer in 4 available answers. (Cóc vàng tàiba)Question 1: bQuestion 2: aQuestion 3: bQuestion 4: dQuestion 5: bQuestion 6: aQuestion 7: aQuestion 8: cQuestion 9: bQuestion 10: bVnDoc - Tải tài liệu, văn bản pháp luật, biểu mẫu miễn phí |