The sixth grade mathematics graduation mock exam 1 1. Fill in the blanks: (***2 1 minute per space 1 minute)
1 and 70305880 are read as () and rewritten as? Wan? The unit number is (), and the mantissa after omitting ten thousand digits is about ().
2. 16 Guangzhou Asian Games 20 10 will be held on 2010/65438+10/0/0.
On the 27th, then the Asian Games will take () weeks, () days more.
3.218: The ratio of123 to the simplest integer is (), and the ratio is ().
4、3? ( )=( )? 24= = 75% = () times.
5. As shown in the figure, the radius at the bottom of the cylinder is (). Put this cylinder
You can get a rectangle by expanding its sides. This rectangle
The area is (), and the volume of this cylinder is ().
(What is pi? )
7. 1 kg brine contains 50 grams of salt, which is ()% of brine.
8, 7 and 8 can be divisible by 2, 3 and 5 at the same time. Only one digit can be filled with (), and at most, one digit can be filled with ().
9. The ratio of boys to girls in a school is 4: 5, and there are more girls than boys.
( )%。
10. The distance between two maps in a city map is 10cm, which means the actual distance is 30km. This map
The scale of is ().
( 1)
2. True or false questions: (* * * 5 points for each question, 1 point)
1, natural numbers (except 0) are either prime numbers or composite numbers. ( )
2. Only three-fifths of the scores are less than four-fifths and more than two-fifths. ( )
3. The height of a cylinder and a cone is equal, and their volume sum is 36 cubic meters, so a cone.
The volume is 9 cubic meters. ( )
4. Of the 90 parts produced, 10 is rejected, and the qualified rate is 90%. ( )
5、? Frog has four legs, two eyes and a mouth; Two frogs have eight legs, four eyes and two eyes.
Open your mouth, three frogs. So the number of frogs is proportional to the number of legs? ( )
Iii. Multiple choice questions: (5 points for each question, 1 point)
1, 2008, 1, February and March * * * have () days.
A.89 B.90 C.9 1 D.92
2. Divide a parallelogram into two trapezoids at will. These two trapezoids, in which ()
Always equal.
A. Height B. Sum of upper and lower bottoms C. Perimeter D. Area
3. The rectangle is 5cm long and 3cm wide, indicating the score of ().
A. length is greater than width B. length is less than width C. width is less than length D. width is greater than length.
4. When the numerator of a fraction decreases by 3 times and the denominator increases by 3 times, the fractional value decreases by () times.
A.3b.6c.9d remains unchanged.
5. The following x and y are inversely proportional ().
A.Y =3+ X B.X+Y= 56 C.X= 56 Y D.Y= 6X
Four, calculation questions: (***30 points)
1, a number written directly. (65438+ 0 point for each question)
26? 50= 25? 0.2= 10-0.86= 24? =
? 3= 125%? 8= 4.8? 0.8= 8? =
12? ( + )= 1- 1? 9= 2.5? 3.5? 0.4=
2. Off-mold calculation. (2 points for each question)
0.25? + 2.5% 9.6- 1 1? 7 + ? four
(2)
3. Solve the ratio and equation. (2 points for each question)
5.4+2X = 8.6 2.5:5 = x:8 0.2 = 1-X24
4. Column calculation. (3 points for each question)
(1) 180 is more than 50% of 10. What's this number?
(2) What is the product of the quotient of 0.15 divided by 5 and multiplied by 5?
Verb (abbreviation of verb) problem solving: (***39 points, 4 points for each question)
1. The motorcade delivered a batch of relief materials to the disaster area, traveling at a speed of 80 kilometers per hour and reaching the disaster area in five hours. When I come back, I will drive at the speed of 100 km per hour. How long will it take for this team to return to the starting point?
The bookstore has a set of popular science books in 96 yuan at the original price, which are now sold at a 60% discount. How much cheaper can I buy a set? If you buy 6 sets, will 360 yuan be enough?
3. The exchange rate of postal remittance is 1%. Xiaoming's father, who works outside the home, sends money to his family, and he pays the remittance fee from 38 yuan. How much did Xiaoming's father remit home?
The car factory planned to assemble 4000 cars in 25 days, which was actually completed five days ahead of schedule. How many cars are actually assembled every day on average? (Equation solving)
5. A rectangular glass fish tank (there is no glass at the top of the fish tank), which is 5 decimeters long, 3 decimeters wide and 3.5 decimeters high. How many square decimetres of glass does it take to make this fish tank?
6. Find out the area of the shaded part in the picture below. Unit: meter (? Take 3. 14)
7. A cylindrical glassware with a bottom radius of 6 cm contains some water, and a conical plumb hammer with a height of 9 cm is immersed in the water. When the plumb hammer was taken out of the water, the water level dropped by 0.5 cm. How many square centimeters is the bottom area of this cone? (? Take 3. 14)
(4)
8. The following is the output statistics of two types of cameras in a digital camera factory from 2005 to 2008.
Unit: ten thousand units
age
In 2005, 2006, 2007 and 2008.
A camera 15 23 30 40
B camera 10 18 25 45
According to the data in the table, complete the following statistical chart.
Statistics on the output of two types of cameras in a digital camera factory from 2005 to 2008.
A camera
Unit: 10,000 cameras-Class B cameras.
In 2005, 2006, 2007 and 2008.
(1), and complete the above statistics. (2 points)
(2) What kind of photography grows faster? (2 points)
(3) In 2008, what was the percentage of camera B in camera A? (3 points)
(4) What is the average annual output of Class A cameras from 2005 to 2008? (4 points)
(5)
Reference answer
65,438+0, 70,305,887,030,588,706,5438+0,000.
2、2 1
3,51:401.275 or
4, 4 18 16 75
5、4cm 80？ Square centimeter 160 cubic centimeter
6、 15 2 1
7、5
8、0 9
9、25
10、 1:300000
Two 1,? 2、? 3、? 4、? 5、?
Three 1, C 2, A 3, C 4, C 5, d
4 1 1300 5 9 14 18
10 6 10
5 3.5
2、0.25? +2.5% 9.6- 1 1? 7+ ? four
=0.2+2.5% =9.6- + = 12? [ ? 3]
=0.2+0.025 =9.6-( - ) = 12?
=0.225 =9.6- 1 =42
=8.6
3、5.4+2X = 8.6 2.5:5 = x:8 0.2 = 1-X24
Solution: 2X =8.6-5.4 Solution: 5x=2.5? 8 solution: X24 = 1-0.2
2X =3.2 X=20？ 5 X24 =0.8
X = 1.6 X=4 X = 0.8？ 24
X = 19.2
( 1)
4、( 1)、( 180- 10)? 50﹪ (2)、(0. 15? +5)?
= 170? 0.5 =( +5)?
=340 = ?
= or 1.35
Five 1, 80? 5? 100
=400? 100
=4 hours
A: A little.
2、96-96? 60﹪ 96? 60﹪? six
=96-57.6 =57.6? six
=38.4 yuan =345.6 yuan 345.6 yuan
A: A little.
3、38? 1￤= 3800 (yuan) A: omitted.
4. Solution: Assume that X cars are actually assembled every day on average.
(25-5)X = 4000
20 X =4000
X =200
A: A little.
5、(5? 3.5+3? 3.5)? 2 + 5? three
=( 17.5 + 10.5) ? 2 + 15
=56 + 15
=7 1 (square decimeter)
A: A little.
6、20 ? 2 = 10 (m)
20? 25 - ? 3. 14 ? 102
=500 ? 1.57 ? 100
=500 ? 157
=343 square meters
A: A little.
7. v = 3. 14? 62? 0.5
=3. 14 ? 36 ? 0.5
=56.52 (cubic centimeter)
V-shaped downspout = V-shaped cone
S cone bottom =56.52? ( ? 9 )
=56.52 ? three
= 18.84 (square centimeter)
A: A little.
(2)
8、( 1)
10
In 2005, 2006, 2007 and 2008.
(2) As can be seen from the figure, the second camera is growing rapidly.
(3) = A: omitted.
(4)、( 15 + 23 + 30 + 40)? four
= 108 ? four
= 27 (ten thousand units)
A: A little.
Grade six math graduation simulation exam 21, calculation (28 points)
1. Write the number directly. 4 points (approximate symbols are estimation questions)
1322- 199= 1.87+5.3= 2-2? 5 = ( + )? 56=
603? 39? 4950? 5 1? 10 10= ( ): =
2. Find the value of unknown x (4 points)
X- = 1.75 0.36:8=X:25
3. How to simply calculate (16 points)
1 ? +2 ? + ( + )? 7? five
? [0.75-( - )] + ? (2.5 - )
4. Column calculation (4 points)
(1)4.6 minus the difference of 1.4, (2) the sum of a number is less than 2 times of 30 times 4,
What was the result? What's this number? (Equation solving)
Two, true or false (5 points)
(1) A cuboid, its length, width and height are expanded by 2 times and its volume is expanded by 6 times. - ( )
(2) The attendance rate of Workshop A is higher than that of Workshop B, indicating that there are more people in Workshop A than in Workshop B. ()
(3) Natural numbers are composed of prime numbers and composite numbers. - ( )
(4) When the scale is fixed, the distance on the map is inversely proportional to the actual distance. - ( )
(5) If the number A is equal to the number B, the ratio of the number A to the number B is 6: 5-().
III. Write the serial number of the correct answer in brackets (5 points)
(1) Sanyo TV Factory will draw () in order to clearly show the monthly output and the changes in the first half of the year.
[A bar chart, B line chart and C fan chart]
(2) two variables x and y, when x? When Y = 45, x and y are ()
[A proportional quantity b is proportional quantity c, not proportional quantity]
(3) The denominator of 15 should be increased, and the numerator should be enlarged to keep the size of the fraction unchanged.
[A 4 times B 3 times C 15 times D 6 times]
(4) Divide the rice into () portions, and each portion is rice.
[ A 18 B 54 C 6 ]
(5) Dissolve 20 grams of sugar in 80 grams of boiling water, and the sugar water will contain sugar ().
[A B 20% C D 20 g]
Four, fill in the blanks (16 points)
(1)3.45 hours = () hours () minutes 50 square meters = () hectares
(2)7 kg is less than () kg; 20 tons is 25 tons after an increase of ()%.
(3)450007020 is pronounced as (), and the mantissa () after 10,000 is omitted.
(4) 1:( )= =25? () = ()% = 20%
(5) Use the five numbers 1, 1.3, 1. 13, 133.3% and 1.34 in descending order? & lt？ The number of the connection is ()
(6)A=2？ 3? 5，B=3？ 3? 5, then the greatest common divisor of A and B is (), and the smallest common multiple is ().
(7) I bought four kinds of vegetables in the canteen today: cabbage and cauliflower * * 53kg, cauliflower and cabbage * * * 40kg, cabbage and spinach * * * 28kg, cabbage and spinach * * * () kg and four kinds of vegetables * * () kg.
(8) The bottom area and volume of cylinder and cone are equal, the height of cone is 1.8 decimeter, and the height of cylinder is ().
5. Calculate the area of the shaded part on the right. (Unit: cm) (4 points)
Six, the following questions, only the questions are not calculated (12 points)
(1) The weaving workshop weaves 3,500m in 2.5 hours. According to this calculation, how many meters can you weave in 5 hours?
(2) Specialized households receive a batch of pears, each batch of 30 kilograms, which requires 70 baskets. How many baskets do you need if each basket is loaded with 5 kilograms more?
(3) It takes 8 days for Party A to complete a job alone, and it takes 10 days for Party B to complete it alone, and both work together. How many days are there left in this job?
(4) The car runs between A and B. When I went there, the average speed was 50 kilometers per hour. When I came back, I drove 60 kilometers per hour on average. What is the speed of this car going back and forth between the two places?
Seven, answer the following questions (24 points)
1. The construction team plans to build an expressway with a daily capacity of 4.5 kilometers, which will be completed within 20 days. In fact, it will be built with a capacity of 6 kilometers per day. How many days can it be finished? (Use proportional solution)
2. The price of a set of tables and chairs is 48 yuan, and the price of chairs is the price of desks. What's the price of this chair?
3. A conical sand pile, with a height of 1.5m, a bottom radius of 4m and a sand weight of about 1.7 tons per cubic meter. How many tons does this pile of sand weigh? (Keep the whole ton as a figure)
4. Two piles of coal, A and B, if A is transported to B with 10 tons, then A will be 5 tons less than B. Now that both piles have carried away the same amount of tons, what is left in pile B is what is left in pile A. How many tons of coal is left in pile A at this time?
Eight. Solve problems (6 points)
The retail price of tickets for a large children's amusement park in Xiamen is one 20 yuan. There are 46 people in class 6 (1). Please design two ways to purchase tickets according to the regulations of the park management office (as shown in the figure), and point out which way is the cheapest.
Mode 1:
Mode 2:
The cheapest way to buy tickets is:
Reference answer
I. Calculation
1、 1 123 7. 17 1.6 6 1 24000 100 1000 1/9
5 1
2、X=2？ X= 1？
6 8
1 1
3、4 17 ? 2?
2 13
three
4、 99
16
Second, judgment.
?
Third, choose
British Broadcasting Corporation
fill (up) a vacancy
( 1)3 27, 0.005
1
(2)7? Kilogram, 25
2
(3) 450,702,450,065,438+0,000.
(4) 5 4 125 20
1
(5) 1. 13 & lt； 1.3 & lt； 133.3% & lt； 1-& lt； 1.34
three
(6) 15 90
(7)4 1 8 1
(8)0.6 decimeter
Verb (abbreviation of verb) 10.75 square centimeter
Six, the application problem (only column type is not calculated)
1 1
( 1) 3500? 2.5X5？ , or 52.5
4 4
(2)30X70？ (30+5)
(3)( 1? 3/5) ? ( 1/8+ 1/ 10)
(4)2? ( 1/50+ 1/60)
Seven,
(1) 15 days
(2)20 yuan
(3)42.704 (about 43 tons)
(4) 100
Eight,
Mode 1: Retail per piece: 20X46=920 yuan.
Mode 2: 25 collective and 2 1 retail: 25X20X80%+2 1X20=820 yuan.
Mode 3: 50 collective: 50X20X80%=800 yuan.
Mode 3 is the cheapest.
Sixth grade mathematics graduation simulation examination questions 3 1? Believe in your ability! ? Please be patient. (20 points for this question * * *, 65438+ 0 points for each space)
1, 200.3 million write (), adapted for use? Wan? Unit number is (), omit? Billion? The mantissa at the back is probably ().
2. The sixth grade mathematics graduation examination paper (20 13): 2 kilograms of a cake, distributed to 10 children on average. Each child was given () pieces of cake, and the weight of the cake was () kilograms.
3. Go south for 200 meters and mark it as +200 meters, then -350 meters is ().
4.0.006 kg = () g 2. 15 hours = () hours () minutes.
5 liters 9 ml = () cubic decimeter 980 square decimeter = () square meter.
There are 48 students in Class 6 (1) today, and two of them are on leave due to illness. The attendance rate of students in Class Six (1) today is ().
6、 。
7. It takes 12 minutes to saw a piece of wood into four sections. At this rate, it will take () minutes if it is to be sawed into six sections.
8. Cut the largest circle from a square paper with a side length of 20 cm. The area of this circle is () square centimeters.
9. From City A to City B, it takes 3 hours by truck and 4 hours by bus. The shortest time ratio between trucks and buses is (), and the shortest speed ratio between trucks and buses is ().
10 The bottom area and volume of the cylinder and the cone are equal, respectively. The height of the cone is 1.8 decimeter, and the height of the cylinder is () decimeter.
Second, please give a sentence. What do you think is right? Please put brackets around each question. , the type is wrong? . (8 points for this question * * *, 65438+ 0 point for each space)
1 and calendar years that are multiples of 4 must both be leap years. ( )
2. The circumference of a semicircle is half of the circumference of the circle in which it is located. ( )
The reciprocal of a number is not necessarily less than this number. ( )
If two straight lines are parallel, they must be on the same plane. ( )
5. One ton of coal is 40% used, leaving 60% tons. ( )
6. Add 0 or remove 0 after the decimal point, and the size of the decimal point remains unchanged. ( )
7, a cuboid, its length, width and height expand 2 times, and its volume expands 6 times. ( )
8. Put five apples in three drawers. There must be at least three apples in at least one drawer. ( )
Third, please choose carefully. Fill in the number of the correct answer in the brackets. (5 points for this question * * *, 65438+ 0 point for each space)
1, observe a 30-degree angle with a magnifying glass with a magnification of 100, then the observed angle ().
A, size unchanged b, reduced 100 times c, enlarged 100 times.
2. The degree ratio of three internal angles of a triangle is 2:3:5, and this triangle is ().
A, acute triangle b, obtuse triangle c, right triangle
3. Is a natural number greater than 10, and the minimum of the following scores is ().
A, B, C,
4, a commodity, the original price of 600 yuan, is now sold at a 10% discount, and the current price is cheaper than the original price ().
A, 530 yuan B, 40 yuan C, 60 yuan
5, with a 200 cm long wire around the following graphics, the largest area is ().
A, square b, circle c, rectangle
Fourth, believe in you? Computing skills? . Please calculate it carefully. (This question ***32 points)
1, directly write the number of the following questions. (8 points for this question * * *, 65438+ 0 points for each small question)
2. Calculate the following questions (simplify them if you can). (This question *** 12 points, 3 points for each small question)
3. Solve the ratio or solve the equation. (This question ***6 points, each empty = small question 3 points)
4, column comprehensive formula or equation calculation. (6 points for this question * * *, 3 points for each blank)
What is the product of (1) 10 and 3.5 divided by 0.7 and multiplied by 0.2? (Column synthesis formula)
②4.32 means that 6 is less than 60% of a number. What's this number? (Equation solving)
5. Do something and draw a picture. (Unit: cm) ((** 10 minute)
(1) Find the area of the shaded part below. (3 points) (2) Find the volume of the cone. (3 points)
(3) Draw a picture.
1, draw the height of BC side of triangle ABC. (2 points)
2. According to the information provided on the right, draw a triangle with the same area as the triangle ABC without measuring any data. (2 points)
Sixth,? Use your wisdom? Please explain carefully. (25 points for this question * * *, 5 points for each small question)
1. On the map of scale, the distance between A and B is 2.4 cm. What is the actual distance between a and b?
2. There are 180 pear trees in Limin Orchard, among which there are more apple trees than pear trees. How many apple trees are there in the orchard?
3. The current price of a mobile phone is 1200 yuan, which is lower than the original price by 400 yuan. What percentage?
4. The distance between Port A and Port B is140km. It takes 4.5 hours for a ship to sail from Port A to Port B, but it takes 1 hour more than when it goes back. What is the average speed of the ship?