1、第 一 页 共 12 页小升初英语类数学题专项练习(一)1、An ant(蚂蚁) covers a distance of 90 metres in 3 hours. The average speed of the ant in decimetres(分米) per minute is_. 2、3、In a certain town some people were affected by a flu epidemic(流感). In the first month 20% of the population contracted the flu whilst 80% were health
2、y.In the following month 20% of the sick people recovered and 20% of the healthy people contracted the disease.What fraction(分数) of the population is healthy at the end of the second month? 4、Mpho, Barry, Sipho, Erica and Fatima are sitting on a park bench(公园长椅).Mpho is not sitting on the far right.
3、 Barry is not sitting on the far left.Sipho is not sitting at either end(两头). Erica is sitting to the right of Barry,but not necessarily next to him. Fatima is not sitting next to Sipho.第 二 页 共 12 页Sipho is not sitting next to Barry.Who is sitting at the far right? 5、Of the 28 Tshirts in a drawer(抽屉
4、), six are red, five are blue, and the rest are white. If Bob selects Tshirts at random whilst packing for a holiday, what is the least number he must remove from the drawer to be sure that he has three Tshirts of the same colour? 6、In an alien language(外语), jalez borg farn means “good maths skills”
5、. Nurf klar borg means “maths in harmony” and darko klar farn means “good in gold”.What is “harmony gold” in this language? 7、Five children, Amelia, Bongani, Charles, Devine and Edwina, were in theclassroom when one of them broke a window. The teacher asked each of them to make a statement(陈述) about
6、 the event, knowing that three of them always lie and two always tell the truth. Their statements were as follows:Amelia: “Charles did not break it, nor did Devine.”Bongani: “I didnt break it, nor did Devine.”Charles: “I didnt break it, but Edwina did.”Devine: “Amelia or Edwina broke it.”Edwina: “Ch
7、arles broke it.”Who broke the window? 8、Did you know? A palindrome(回文数) is a number which reads the same forwards as backwards e.g. 35453. The year 2002 is an example of a palindromic number. 第 三 页 共 12 页What is the difference between 2002 and the number of the previous palindromic year? 9、If a b =
8、a+3b then the value of 2+2 (3 5) is_. 10、Two ants start at point A and walk at the same pace. One ant walks around a 3 cm by 3 cm square whilst the other walks around a 6 cm by 3 cmrectangle. What is the minimum distance, in centimetres, any one mustcover before they meet again?小升初英语类数学题专项练习(二)1、Did
9、 you know? In the decimal number system (base 10) ten different digits, 0 to 9, are used to write all the numbers. In the binary number system (base 2) two different digits are used, i.e. 0 and 1.Which one of the following numbers is not a valid number in the octal number system (base 8)?A) 128 B) 1
10、27 C) 126 D) 125 E) 1242、The number of diagonals that can be drawn in a regular polygon withtwenty sides (icosagon) is_.第 四 页 共 12 页翻译:正 20边形的对角线有几条?4、Two numbers are in the ratio 2 : 3. When 4 is added to each number the ratio changes to 5 : 7.The sum(和) of the two original numbers is_.5、The greate
11、st number of Mondays which can occur in 45 consecutivedays is_翻译:连续 45天内,最多有几个星期一?6、Saul plays a video game in which he scores 4 for a hit and lost 6 for a miss. After 20 rounds his score is 30. The number of times he has missed is_.7、Three girls A, B and C run in a 100 m race. When A finishes, B is
12、 10 mbehind A and when B finishes C is 20 m behind B. How far in metres was C from A when A finished?(Lets assume all the athletes run at a constant speed)第 五 页 共 12 页8、The areas of the faces of a rectangular box(长方体盒子) are 84 cm 2 , 70 cm2and 30 cm2.The volume of the box in cm3 is_.9、You have 3 wei
13、ghts(砝码): 1 kg, 3 kg and 9 kg as well as an equal arm balance(天平). How many different weight objects can you weigh with these three?Remember the weights may be placed on either side小升初英语类数学题专项练习(三)1. Two numbers differ by 57. Their sum is 185. Find the numbers. Choices for the smaller number:54 64 7
14、4. 2.A bus went 318 km farther than a car. The car went one third as far as the bus. How far did each vehicle(车辆) travel? Choices for the smaller number: 147 151 159 3.One number is four times another number. The larger number is also 87 more than the smaller number. Find the numbers. Choices for th
15、e smaller number: 29 30 33 第 六 页 共 12 页4.A clown(小丑) weights 60 lb(磅) more than a trapeze artist(空中飞人). The trapeze artist weighs two thids as much as the clown. How much does each weigh? choices for the weight of the trapeze artist : 110 120 125 5. The U.S. Senate(参议院) has 100 members, all Democrat
16、s(民主党人) or Republicans(共和党人). Recently there were 12 more Democrats than Republicans. How many Senators from each political party were there at that time? Choices for the number of Republicans: 38 42 44 6.The ninth grade class has 17 more girls than boys. there are 431 students in all. how many boys
17、 are there? how many girls are there? Choices for the number of boys: 191 202 207 7. Elena has one and a half times as much money as Ramon.Together they have 225. how much money does each have? Choices for Ramoms amount;80 90 95 8. Western state college is 18 years older than southern state. western
18、 is also 2 and the half times as old as southern. how old is each? Choice for southern states age:12 14 18 第 七 页 共 12 页【2015 年洛阳二外小升初真题】1. When my dad celebrated his 31st birthday, I was 8 years old. Now my dad is twice the age of I am. Whats my age now?2. A bottle of juice sells at the price of 1 Y
19、uan. The juice is worth 0.9 Yuan more than the bottle is. How much does an empty bottle cost?3. Can you add the operations to the formula to make it correct?8 _ 4 _ 2 _ 9 = 254. Please put the following numbers into the circles so that you get 40 when you add all the numbers on each side of the tria
20、ngle? 6, 18, 6, 9, 8, 7, 19, 4, 215. Mr. and Mrs. Bing has 7 daughters, each daughter has a brother. How many sons do Mr. and Mrs. Bing have?第 八 页 共 12 页6. Whats the next number?4, 6, 10, 18, 34, _【2013 年洛阳二外小升初真题】1.There are some chickens and rabbits in a cage(笼子).You can see 9 heads at the top and
21、 24 feet at the bottom. How many chickens and rabbits are there in the cage?(6 分)2.100 students were in a math contest(竞赛).The average(平均数) of their final score(分数) is 63.The average of the boys score is 60.The average of the girls score is 70.How many of them are boys? How many of them are girls? (
22、8 分)3.Jack and Jim are friends. The ratio(比)of Jacks and Jims pocket money is 3:2.If Jack gives Jim 10 yuan, the ratio of their pocket money will become 5:4.So how much money does Jack have?(8 分)4.Mike has a lot of apples. He needs to get them to town and sell them. It 第 九 页 共 12 页takes(花费)3 days to
23、 get all the apples to town with 8 big trucks. It takes 8days to get 75% of the apples to town with 5 small trucks. Now Mike has 3 big trucks and 4 small trucks, how many days will it take to get all the apples to town?(8 分)小升初英语类数学题专项练习(一)参考答案1、单位换算 9010(360)52、 463、 74、 Erica5、 抽屉原则 76、 注意一一对应,bor
24、g= maths, farn=good, jalez=skills. Klar=in, Nurf=harmony, darko=gold. 答案是 Nurf darko.7、 Charles8、 2002-1991=119、 5810、 36小升初英语类数学题专项练习(二)参考答案1、A 考察我们学过的简单的进制问题,显然 8进制中没有 8出现2、170 找规律,公式为 n(n-3)23、3 就是求 379减去 6的平方的差的各位数。4、16+24=405、76、57、28 米,根据距离比求出速度比,三者的速度比为 1:9/10:18/258、420cm 3 分解质因数9、13 种 113 都
25、可以小升初英语类数学题专项练习(三)参考答案1.设较小数为 x. x+x+57=185 x=64. 2.设轿车行驶了 x千米. 318+x=3x x=159 千米 第 十 页 共 12 页轿车行驶了 159千米,公车行驶了 318+159=477千米. 3.设较小数为 x. 4x=x+87 x=29. 4.60+x=3x/2 x=120 5.Let the number of Republicans be x. x+x+12=100 x=44 6.设有 x名男生 x+x+17=431 x=207 名 有男生 207名,女生 431-207=224名. 7.设 Ramom有 x元. x+3x/2=225 x=90 元 8.设 southern states college 有 x年历史. x+18=5x/2 x=12 年.【2015 年洛阳二外小升初真题参考答案】