ĐỀ THI OLYMPIC TIẾNG ANH LỚP NĂM HỌC 2013 VÒNG 21 - ĐỀ THI SỐ Chọn câu trả lời tốt cho câu hỏi Malinda collects rocks when she goes camping Each time she adds to her collection, she weighs the rocks in grams using the scale above To balance the scale, she needs to add one more rock How much should the additional rock weigh? A 300 grams B 600 grams C 640 grams D 760 grams Mrs Johnson asked her class why 4/5 is greater than 2/3 Four of the students’ answers are listed below Which is the best answer? A B C D because is larger than because 1/5 is larger than 1/3 because + is more than + because 4/5 is closer to than 2/3 Richard collects rubber bouncy balls He wants to store his bouncy balls in boxes Each box can hold 15 balls How many boxes will Richard need to store 300 bouncy balls? A 20 B 30 C 285 D 315 Charlie is training for a marathon by running every morning He records the number of miles he runs each day using the list above If the pattern in the list continues, how many miles will Charlie run tomorrow? A 12 B 15 C 16 D 18 Billy weighs his pet rabbit every month to track his growth This month, Billy’s rabbit weighed less than 4.1 pounds Which of the following could be his rabbit’s weight this month? A 4.13 B 4.11 C 4.20 D 4.09 Amy is a building architect After she draws her models, she builds them using blocks How many blocks did Amy use to build the model shown above? A B 11 C 13 D 14 Paulo is playing a math trivia game He has to answer all the questions quickly to get the most number of points What could Paulo to make multiplying 37 x 99 in his head easier? A Round 99 to 100 C Round 99 to 90 B Round 37 to 35 D Round 37 to 30 Zach works in the tile section of Home Depot His task for today is to make some tile displays The image above shows the displays he has made so far If the pattern of displays continues, how many tiles will be in the 4th display? A B C D 12 Carmen and her friends had a bake sale to raise money for an orphanage They received a total of 3,873 coins during the bake sale How many coins did they collect to the nearest hundred? A 3,870 B 3,900 C 3,970 D 4,000 10 Alice can fill large glasses from one pitcher of lemonade If she uses glasses that are one-half as large, about how many of the small glasses can she fill from two pitchers of lemonade? A small glasses C 20 small glasses B 16 small glasses D 32 small glasses ... A 12 B 15 C 16 D 18 Billy weighs his pet rabbit every month to track his growth This month, Billy’s rabbit weighed less than 4.1 pounds Which of the following could be his rabbit’s weight this... small glasses can she fill from two pitchers of lemonade? A small glasses C 20 small glasses B 16 small glasses D 32 small glasses ... make multiplying 37 x 99 in his head easier? A Round 99 to 100 C Round 99 to 90 B Round 37 to 35 D Round 37 to 30 Zach works in the tile section of Home Depot His task for today is to make some