1, divide the 5-meter-long iron wire into 7 segments on average, each segment is 1 meter; It's also 5 meters ()

The length of each wire is ().

( )

( )

( )

12

12

( )

2. = 0.75 = (): () = ()% = (into a number:).

3. If the number A=2×2×3×5 and the number B=2×3×3, then:

The greatest common divisor of (1) two numbers is (); (2) The least common multiple of two numbers is ();

(3) The common divisor of two numbers is ().

4. The number of female employees in the workshop is less than that of male employees, and the proportion of male employees in the total number of employees in the workshop is ().

5. If the number of A is equal to 50% of the number of B, then the number of A () is the number of B. ..

6. It is known that 2X=, x: y = (): ().

7, burning a certain amount of coal every day, () and () is proportional.

8, a cylinder, cut off 6 cubic decimeters, just cut into a cone with equal bottom and equal height. This cone

The volume of is ().

9, a tung oil poured out exactly 20 kilograms. If you pour out 40%, there is still ().

10, the ratio of the degrees of the inner angles of the triangle is 3: 5: 4, and the degrees of these three inner angles are respectively

Is (), this triangle is () triangle.

Second, the judgment (10)

1, a commodity is 15% off, which means that the commodity is 15% off. ( )

2. The seed germination test showed that the highest germination rate could reach 100%. ( )

3. Two proportions can form one proportion. ( )

4. Cardboard with a length of 3. 14 decimeter and a width of 6.28 decimeter can be made into a cylinder with a volume of about 9.9 cubic decimeter.

Paper tube. ( )

The radius of the wheel is fixed, and the distance traveled is inversely proportional to the number of revolutions of the wheel. ( )

Third, the choice (6 points)

1, the ratio of circumference to radius of a circle is ()

1:2π 2π: 1

2. The price of a commodity decreases by 10%, and then increases by 10% ()

Constant below original price and above original price

3. Party A and Party B each go part way. They used a time ratio of 4: 5 and a speed ratio of 5: 3. The way they walk.

The ratio of cheng is ()

25: 12 12:25 4:3 3:4

Fourth, enjoy success.

1. Process the cylindrical ingot shown in the figure below into a rectangular ingot. (4 points)

1) How did you handle it?

3 decimetres

2 decimeter 2) What is the volume of the processed cuboid ingot? (RoW only)

2. The following figure is a statistical map of the planting area of various crops with cultivated land in a village. Please add conditions, ask questions and list formulas that have not been calculated. (Not less than four questions) (5 points)

Supplementary condition problem formula

Oilseed cotton

Material 10% 20%

70% of food crops

3. The time and quantity of parts processed by a processing group are shown in the figure below. (4 points)

① () and () are directly proportional to ().

② Mark the value next to ●.

Unit: one

100 ●

80 ●

40 ●

20 ●

2 4 6 8 hours

③ Proportional formula of column:

Five, only column type does not answer (24 points)

1. An engineering team invested 200,000 yuan to complete a project, saving 50,000 yuan compared with the scheme. What percentage of investment was saved?

2. the number of class a is the sum of the number of class b and class C. Find the ratio of class A to the sum of the numbers of class A, class B and class C. ..

3. A production team processed 200 parts, of which 15 was unqualified. Find the qualified rate.

On the map with the scale of 1: 25000, the distance between the two places is 4.5 cm. What is the actual distance between the two places?

5. A chemical fertilizer factory produced 25% more chemical fertilizer than planned in April. How many tons of chemical fertilizer do you plan to produce in April?

6. Car B is slower than car A. It is known that car A travels 90 kilometers in 2 hours. How many kilometers does bus B travel per hour?

7. A pile of goods has been shipped away, leaving 120 tons. How many tons have been shipped?

8. From place A to place B, it takes 6 days for A to arrive and 8 days for B. It is known that A travels 80 times more than B every day.

Thousand, find the distance between the two places.

Six, answer (30 points)

1, the length-width ratio of the cuboid object is 5: 3, and the perimeter of the bottom surface of the cuboid object is16m. Find the cuboid.

The bottom area of an object.

2, a pile of goods, the first time away, the second time more than the first 3 tons. Rest and transportation

How many tons is this pile of goods?

3. If 10 people are transferred from workshop A to workshop B, the number of people in workshop B belongs to workshop A ... second.

There are fifty people in the workshop. How many people are there in Workshop A?

Warehouse a and warehouse b store 300 tons of grain. After the grain storage of warehouse B is adjusted to 20 tons, it happens to be 60% of that of warehouse A with more grain storage.

Less tons?

5. Two cars of Party A and Party B leave from two places at the same time. When the distance between the two cars is 35km, Party A will complete the whole journey.

, the whole b car. How many kilometers are the two places apart?

6. After the books on a shelf are lent out, 14 books are put in, so the number of books on the shelf is the same as the original books.

The ratio of figures is two to three. How many books are there?