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?

The final examination paper of sixth grade mathematics in primary school (Volume B)

Fill in the blanks. (Per grid 1 min, *** 19 min)

1, 1000 billion, 5 tens of millions, 4 hundreds of thousands, and the mantissa after "100 million" is rounded to ().

2.L = () L () ml

3.45 hours = () hours () minutes.

3. Expand 8.05 by 10 times, and then move the decimal point to the left by two places to get ().

4.9, 10 and 18, () is divisible by (), () and () are coprime.

5. The greatest common divisor of18 and 2 1 is (), and the least common multiple is ().

6.a and B are both natural numbers. If >, then, compared with B, () is larger.

7. If the number of A is given to the number of B, then the numbers of A and B are exactly equal, and the simplest integer ratio of B and A is ().

In class 8.6 (1), the number of boys is 125% of the number of girls. The number of boys is the whole class, and the number of girls is less than that of boys ()%.

9. Cut a cube with a side length of 4 decimeters into the largest cylinder, and the volume of the cylinder is ().

10. Draw a rectangular vegetable plot with an area of () 80 meters long and 60 meters wide on the map with the scale of 1: 2000.

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

1, the number divisible by 2 must not be divisible by 3. ( )

2. 12.5m: km The simplest integer ratio is 1: 10 ().

The side length of a cuboid is 24cm, and the cuboid must be 6cm. ( )

If the number of A is equal to the number of B, the number of A is 60% more than that of B. ..

Third, multiple choice questions. Fill in the serial number of the correct answer in (). (4 points)

1, it is known that a 3-meter-long line segment is divided into 4 segments on average, and it can be concluded that ()

Serve 3 meters at a time.

② Every serving is rice.

③ Serve 3 meters at a time.

④ Every serve 1 meter.

2, according to the quotient of a number divided by b number is 4, you can determine ().

① A number must be divisible by B number.

② The number B must be divisible by the number A..

③ The ratio of number A to number B is 4: 1.

④ The number A is the least common multiple of the numbers A and B..

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

5. Off-mold calculation. (20 points)

1、98× 102-6999

2、0.4÷2.5+0.07×50

6. As shown below, the drain pipe has an outer diameter of 30 cm, a wall thickness of 3 cm and a pipe length of 4 m. Find the volume of the drain pipe. (4 points)

Seven, column calculation. (8 points)

1, 13.6 minus 9.4, divided by, what is the quotient?

2.3. 1 less than a number 1.6. What's this number? (Equation solving)

Eight, application questions. (35 points)

1. Li Ming deposited in the bank in 500 yuan and got back the principal and interest of 537.35 yuan one year later, thus obtaining the annual interest rate.

2. There are 160 apple trees in the orchard, and there are fewer pear trees than apple trees. How many apple trees are there in the orchard?

3. A car travels from Dongcheng to Xicheng, with a speed of 4 1 km in the first three hours and 220 km in the last four hours. How many kilometers does this car average per hour?

4. The construction team can pave 15 square meters with 480 square bricks. According to this calculation, the area of the school electric classroom is 120 square meters. How many square bricks do you need to buy? (solved by proportional method)

5. How many square centimeters does it take to weld a rectangular open bucket with a bottom length of 25 cm and a height of 40 cm with iron sheet?

(1) Ask how many people are there in the three tree planting teams. Fill in the data in the form.

(2) Find the average number of trees planted by each of the three teams. Fill in the table with numbers.

7. Last semester, there were 65,438+080 students in Grade 6 of Hong Guang Primary School. This semester, the number of boys increased by 16%, while the number of girls decreased by 6. The whole grade 186 students this semester. How many boys were there in the sixth grade last semester?