Fill in the blanks. (2 points for each question of 6 10, and the rest 1 0, *** 18)

1, 1, 058,000 is written as (), and it is rewritten as () million.

2.20.08km = () km () m

At 3: 45, when the score is (), when the decimal is ().

4. The decimal unit of is (), and there are () such decimal units.

The prime factor of 5.340 decomposition should be written as 340= ().

6. The average value of all prime numbers in 10 is ().

7、7==( )%

The ratio of 8 to 8.4 is ().

9, () meters is equal to 6 meters.

10, the height of a cylinder is four times the radius of the bottom surface, the circumference of the side development diagram of this cylinder is 6 1.68 cm, and the radius of the bottom surface of this cylinder is (). (π is 3. 14).

Second, the judgment question. Mark "√" in the right picture and "×" in the wrong question. (4 points)

1, a natural number has no greater divisor than itself. ( )

2,97 is the largest prime number in 100. ( )

3. In the multiplication formula, the multiplier is 0 and the ratio of product to multiplicand is 4: 5. ( )

The volume of any cylinder is twice that of a cone. ( )

Third, multiple choice questions. Fill in the letter indicating the correct answer in (). (4 points)

1, a barrel of oil 5 kg, use all first, then use kg, use a * * * ().

A kg b kg c kg 4 kg

2. Make a cuboid with four cubes, and the volume is 1 cubic decimeter. The surface area of this cuboid may be ().

A, 16 square decimeter b, 18 square decimeter c, 24 square decimeter

Four, with a simple method to calculate (write a simple calculation process) (6 points)

1、

2、 1.25×25×0.4×8

5. Off-mold calculation. (20 points)

1、205×32-656

2、2975÷ 125+26×3.5

3、

4、(2- 1.25×)×(

5、

6. Find the area of the blank part in the figure below. (5 points)

Seven, column calculation. (8 points)

What is 40% of 1 and 560 more than it?

2. If 15% of a number is greater than 12.8, find this number. (Equation solving)

Eight, application questions. (35 points)

1. In the first quarter, the machine tool factory produced 570 machine tools, 90 more than planned. What is the ratio of exceeding the plan?

2. For a project, if Team A works alone for 3 days, according to this calculation, how many days will it take to complete all the projects?

The distance between a and b is 32 kilometers. A and B set out from A and B at the same time and walked in opposite directions. The speed ratio of B to A is 3:5. How many kilometers did they walk when they met?

4. The area of a trapezoid is 12 square decimeter, and the upper bottom and height are both 2.4 decimeters. How long is the lower bottom? (Equation solving)

5. In the past, 78 yuan was required to make a school uniform, but now the price of each uniform is increased by 12 yuan. How many sets of 60 school uniforms can be made with the original money?

6. Teacher Zhang borrowed a book. On the first day, he read 30% of the whole book. The next day, he read less than the whole book 14 pages. In two days, he read 70 pages. How many pages are there in this book?

7. A cylindrical glass jar with a bottom radius of 2 decimeters contains water with a depth of 65,438+0.5 decimeter. Put an irregular piece of iron into this jar, and the water level will rise by 0.5 decimeter. What is the volume of this piece of iron?