ĐỀ THI OLYMPIC TIẾNG ANH LỚP NĂM HỌC 2013 VÒNG 21 - ĐỀ THI SỐ Chọn câu trả lời tốt cho câu hỏi Mrs Mayra wrote the following four number sentences on the board Only one of them is true Which is the true sentence? A × × = × B 28 – 16 = 16 – 28 C + + = + D 21 + 17 + 30 = 21 + 47 Mr Rogers is a civil engineer He is looking at the angles formed by the intersection of First Street and Main Street shown above What type of angle is angle Z? A acute B obtuse C right D straight Joey made a number relationship using the number of miles he ran in the past two days Which of the following relations is true? A 0.6 < 0.16 B 0.6 = 6.0 C 0.6 < 0.56 D 1.6 = 1.60 Joan and Evelyn are standing on a straight 150-yard sidewalk Joan is 30 yards from the north end of the sidewalk and Evelyn is 15 yards from the south end of the sidewalk How far apart are they? A 105 yards B 120 yards C 135 yards D 195 yards Leslie drew line AB, which is unit in length, in the sand using a stick Her sister drew line PQ in the sand next to Leslie’s line Which of the following is the best estimate for the length of line PQ? A units B units C 10 units D 14 units Marcella ran a race in 10.6 seconds, and Omar ran it in 9.8 seconds How much faster did Omar complete the race than Marcella did? A 0.2 second B 0.8 second C 1.2 second D 1.8 second Crystal is cleaning out her fish tank and put her fish in a bathtub full of water while she finished If she were to measure the volume of water in the tub, which of the following units would she use? A kilometer B gram C liter D degree Carmen kept track of the temperatures in Portland and Anchorage for a science project Her data is presented in the graph above How much warmer was the average temperature in Portland than in Anchorage during the month of July? A 4° B 5° C 7° D 10° Jane baked 12 cookies for her sister’s birthday party They were so popular that 5/6 of the cookies were eaten in less than minutes How many cookies were eaten in this time? A B C 10 D 36 10 Jason went to get change for the school book fair He took 20 ten-dollar bills to the bank and exchanged them for five-dollar bills How many five-dollar bills did he get? A B 10 C 20 D 40 ... 15 0 -yard sidewalk Joan is 30 yards from the north end of the sidewalk and Evelyn is 15 yards from the south end of the sidewalk How far apart are they? A 1 05 yards B 12 0 yards C 1 35 yards D 1 95. .. A 4° B 5 C 7° D 10 ° Jane baked 12 cookies for her sister’s birthday party They were so popular that 5/ 6 of the cookies were eaten in less than minutes How many cookies were eaten in this time?... units C 10 units D 14 units Marcella ran a race in 10 .6 seconds, and Omar ran it in 9.8 seconds How much faster did Omar complete the race than Marcella did? A 0.2 second B 0.8 second C 1. 2 second