School _ _ _ _ _ Class _ _ _ _ Name _ _ _ _
1. Fill in the blank: (***2 1 min, each grid 1 min)
1 and 70305880 are pronounced as () and rewritten as () in units of "ten thousand", and the mantissa after omitting ten thousand digits is about ().
2.20 10/6 Guangzhou Asian Games will be held on 20 10/12-10.
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 ().
(Pi is π)
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 ... then 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 + ×4
(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 (π is 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? (π takes 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.
Output statistics 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)
Attachment 1: 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 80πcm2 160 cm3
6、 15 2 1
7、5
8、0 9
9、25
10、 1:300000
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+ ×4
=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﹪×6
=96-57.6 =57.6×6
=38.4 yuan =345.6 yuan 345.6 yuan
A: A little.
3, 38 ÷ 1 cut = 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 + 5×3
=( 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 Downfall Tank = 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 \u(×9)
=56.52 ÷ 3
= 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)÷ 4
= 108 ÷ 4
= 27 (ten thousand units)
A: A little.
(3)