Primary school mathematics real questions volume sixth grade

Mathematics Volume 12 Final Examination Paper

(Name rating

Give it a try and you can fill it up. (10)

1, a nine-digit number, the number in the highest and hundreds of digits is 6, and the rest of you are 5. Write down this number.

() The mantissa after omitting "ten thousand" is about ().

2, 270 square decimeter = () square meter 6.25 hours = () hours () minutes.

3. Divide the 2-meter-long rope into five sections on average, with each section being full () and each section being long ().

4. On the map with the scale of 1: 6000000, the distance from Shenzhen to Guangzhou is 3 cm, and the actual distance from Shenzhen to Guangzhou is about () kilometers.

5.A number =2×3×3, B number =5×3×2, the greatest common divisor of A number and B number is (), and their least common multiple is ().

6. There are 276 female workers in one workshop, 36 more than male workers, and female workers are ()% more than male workers.

7. Cylinders and cones have equal bottoms and heights. The sum of their volumes is 12 cubic decimeter, and the volume of the cone is () cubic decimeter.

8. Xiaoli deposited RMB 65,438+0,000 in the bank for a term of 2 years, with an annual interest rate of 2.66%. When due, she can get the after-tax interest of RMB () from the bank.

9. Xiaoming ran 1200m, the time was shortened from 5 minutes to 4 minutes, and the speed was increased by ()%.

10. Draw the largest circle in a square with an area of 16 square centimeter. The area of this circle is () square centimeters.

Second, please be a fair judge. (5 points)

1, two triangles with equal areas can definitely make a parallelogram. ( )

2. An angle greater than right angle is called obtuse angle. ( )

3. A triangle has a certain height, and its base is proportional to its area. ( )

After the side length of the cube is reduced by half, the volume is reduced by half. ( )

5. 1999 The first quarter has 90 days. ( )

Third, sit in the right position. (10)

1, in the plan view below, the symmetry axis is the most ().

A, rectangle b, square c, equilateral triangle d, sector

2, put 20 grams of sugar into 80 grams of water, the sugar content of sugar water is ().

a、20% B、C、25% D、

3. The circumference of a big circle is twice that of a small circle, and the area of a big circle is () times that of a small circle.

a、2 B、8 C、 16 D、4

4, () can not only display numbers, but also clearly display the changes in quantity.

A, bar chart b, line chart c, fan chart

5, a cylindrical wood, cut it into three sections, if the bottom area is 25 square centimeters, then the surface area of the wood will increase by () square centimeters.

a、50 B、75 C、 150 D、 100

Fourth, please calculate. (23 points)

1, please write the number directly. (4 points)

1- + = 9-0.9= 1÷ × = 0.5- +0.5- =

8. 1+ = 72÷0.4= ( + )×24= 7÷ ×7× =

2. Calculate with recursive equation. (Do whatever is convenient for you) (8 points)

95.4×83+ 19×95 -95.4×2 5 - - - +

24×( + - ) 1 1 10÷[56×( - )]

3. Solve the equation. (4 points)

2X+3×0.9 = 24.7 0.3:X = 17:5 1

4. Column calculation. (7 points)

(1) A number is less than 3.6 times of 65438+0.6 times of 4.5. Find this number.

(2) 65438+ 0.5 times the number A is equal to 5% of the number B. Given that the number A is 3.5, what is the number B?

Five, only the comprehensive formula or equation, not calculation. (12)

1, a barrel of oil is used, and there are tons left. How many tons is this barrel of oil?

2. An engineering team built 64 kilometers of roads in the first five days, and spent the next seven days every day 14 meters. How many kilometers does this road repair team repair on average every day?

3. For a project, two teams, A and B, will do it together 10 day, one team will do it alone 15 day, four days later, two teams will cooperate, and the rest will be done by.

How many days will it take Team A to do it alone?

Garden workers planted 4320 trees this year, which is more than three times that of last year. How many trees were planted last year?

Sixth, mathematics in life. (40 points)

1, Xiaohong read a book, reading 39 pages, and the rest is 7 pages more than the whole book. How many pages are there in this book?

2. One class takes three days off, and the attendance rate is 94%. Of the three people who asked for leave in the afternoon, 1 person came to the school to ask about the attendance rate in the afternoon.

3. Buy a batch of coal and plan to burn tons every day for 20 days; In fact, it saves 20% per day. How many days can it burn?

(Answer in proportion)

The monthly sales of sweaters in a shopping mall in the second half of last year are as follows.

July 7, 8, 9, 1 1, 12

Sales volume (pieces) 300 360 600 1200 800 400

(1) Complete the following broken-line statistical chart according to the data in the table.

Statistical table of sweater sales in a shopping mall

(Second half of 2004)

Year-month system

(2) How many sweaters does this mall sell on average every month in the second half of the year?

(3) Observe and analyze the statistical chart above. What questions can I ask? Answer them according to your questions.

There are 39 people in Class One, Grade Six, Sunshine Primary School who go to the water park to play. They looked at the price list at the door and were discussing how to buy tickets. Please help them design several ticket purchase schemes, which is the most economical?

Water park ticket price list

One-way ticket group ticket (10 person)

200 yuan, 25 yuan.

There are two ways to buy a house: installment payment and one-time payment. If you pay by installment, you have to pay 16% of the selling price of this house. If you pay in full, you can get a discount of 15%. Mr. Li calculated that installment payment costs 6.5438+0.26 million yuan more than one-time payment. What's the price of this house?

7. A 60-kilometer expressway is divided into three sections: uphill, flat and downhill. The ratio of the length of each section is 1 :2 :3, and the time ratio for Uncle Zhang to ride through each section is 3 :4 :5. It is known that his riding speed on a flat road is 25 kilometers per hour. How long did it take him to finish the trip?

Xiao Ming and Liang Xiao each have some glass balls. Xiao Ming said, "You have fewer balls than me." Liang Xiao said, "If you can give them to me, I will have two more balls than you!" " . How many original glass balls does Xiaoming have?

Attached answer:

1. 1, 6556555555 65566 million 2,2. 7 6: 00 15.

3 1/5 0.4m 4 180

5、 6 90 6、 15

7、 3 8、 42.56

9、 25 10、 12.56

2. 1, wrong 2, wrong 3, right 4, wrong 5, right

Third, 1, B 2, A 3, D 4, B 5, d

Four. 1, 1.2 8. 1 4/9 0.6

8.35 180 14 49

2、95.4×83+ 19×95 -95.4×2 5 - - - +

= 95.4 ×(83+ 19-2) = 6- 1