achievement

Fill in the blanks. (2 points for each question, ***24 points. )

1, 5,003,466,008 is written as (), and the mantissa after omitting 100 million is about ().

2, 58 = () (decimal) = () (percentage) = 10: () = () 24.

3. The aspect ratio of a cuboid is 3: 2: 1. If its height is 2 cm, its volume is ().

4. The ratio of the inner angles of a triangle is 2: 3: 5, and this triangle is a () triangle.

5. A project will be completed by Party A in 8 days, by Party B in 1 day 16, and by two teams in () days.

6. Minute length of the clock 1 2cm, running1hour. The total length of the route passed by the needle tip of the minute hand is ().

7. On the map with the scale of 1: 500000, the distance between A and B is 14cm, which is actually () kilometers.

8. wang hong bought 1 1,000 yuan of three-year State Construction bonds. If the annual interest rate is 2.9%, he can get the principal and interest of * * * () yuan at maturity.

9, 1 hour 45 minutes = () When 6.09 liters = () cubic centimeters.

The five numbers 10, 23, 34, 0.72, 70% and 0.65 are arranged from small to large:

1 1, a number divided by 3 is 2, and divided by 7 is 2. The minimum quantity is ().

12, and the distance between Party A and Party B is 140km. A car from A to B takes 2.5 hours, and the return journey is short 1 hour. The average speed of this car is ().

Second, the judgment question. (65438+ 0 points for each question, ***4 points. )

1, cuboids and cylinders with equal base area and height must have the same volume. ( )

2. Because 34 of A is equal to 23 of B, A > B .. ()

A circle with a radius of 2 decimeters can be drawn in a rectangle with a length of 4 decimeters and a width of 5 decimeters. ( )

If a cylinder is cut into the largest cone, its volume will be reduced by 23%. ( )

Third, choose. (65438+ 0 points for each question, ***4 points. )

1, the school planted a batch of trees, and all 97 trees survived. The survival rate of this batch is ().

A 100% B 99% C 98% D 97%

2. In the following questions, the inverse relationship between the two quantities is ().

A certain work efficiency, working hours and total workload.

B a certain distance, the distance traveled and the remaining distance.

A rectangle has a certain circumference, length and width.

The area of D triangle remains the same, so does the base and height of this triangle.

3, the following graphics must be axisymmetric graphics ().

Acute triangle b parallelogram c circle d trapezoid

4. The volume of a cone is the same as that of a cylinder, so the height of the cylinder is the height of the cone ().

A 13 B 3 times C 23 D 2 times

Fourth, you must be able to do the following calculations correctly and quickly. (24 points)

1, a number written directly. (4 points)

32 ÷ 12 0.5+ 134 0.25× 145 ×4 35 ×3.5

3. 14×22 6.5×3× 15 0.25×(4 15 ×4) 16 17 ÷8

2. calculation. (8 points)

8- 15 ×57 ÷ 4 9.6 ÷ 3.2+5. 1×4

49 ×(3 10 ÷ 35 +25 ) 60×(34 -23 +25 )

3. Column calculation. (6 points)

The difference between 8% of (1)250 and 3 times of a number, (2) the number obtained by subtracting 1.5 from 45 of 4.5 and dividing it by 2. 1,

It's exactly 3.2. Find this number. What is the quotient?

4. Find the unknown X. (6 points)

23 X-7 15 = 0.8×23 19:23 = 8:X

5. operation. (8 points)

1. Measure the required data first, and then find its surface area. 2. Measure the required data first, and then calculate its area.

(Data should be kept to two decimal places). (The data should be kept to one decimal place).

Sixth, the application problem. 36 points (3 points ×5+8 points +5 points +8 points)

Problem 1 ~ 5 has only calculation formula.

1, the price of an electrical appliance is 135 yuan, which is lower than the original price 15 yuan. What percentage is it lower?

2. One line goes 20 meters, which is 5 meters less than the other three times. How many meters is left in this wire?

3. At the end of the term, Xiaohong's average score in Chinese and math was 94.5, and Xiaohong's average score in Chinese, math and English was 94.5.

Her average score is 94. How many points did she get in the English exam?

4. The total length of a highway is 12km, and 3 1.5m was built three days before the start of construction. According to this calculation, how many days will it take to complete this road?

There are 360 peach trees and apricot trees in the orchard. The number of apricot trees is 45 of that of peaches. How many apricot trees are there?

6. The distance between A and B is180km. A train goes from place A to place B, and it is planned to arrive in 4 hours. In fact, it takes 5 kilometers per hour more than originally planned, so it only takes a few hours to get there. (two solutions)

7. Conical sand pile with a bottom area of 15.7 square meters and a height of 3.5 meters. If each cubic meter of sand weighs 1.8 tons, how many times will this pile of sand be transported by a truck with a load 10 tons? (Numbers are reserved as integers)

8. Complete the statistics first, and then fill in the blanks.

Statistics on Total Income of Dongxin Village and Income of Village-run Enterprises

March 2004 system

project

Amount (yuan)

The total annual income of the village includes village-run enterprises.

Income The percentage of income of village-run enterprises in total income.

20017.5 million 4.2 million

In 2002, it was 8,755,300.

In 2003,18 million

total

In 2003, the income of village-run enterprises increased by 1 10,000 yuan compared with 2002, with an increase of%.