The final examination paper and answer of the first volume of sixth grade mathematics 20 15

First, think carefully and fill in carefully. (24 points)

The reciprocal of 1 and 0.25 is (), the reciprocal of the smallest prime number is (), and the reciprocal of the smallest prime number is ().

2. "Spring water and spring pool are full, and spring grass is born in spring. Spring people drink spring wine and spring birds make spring scenery. " The frequency of the word "Spring" in the poem accounts for ()% of the total number of words in the poem.

3: The simplest integer ratio is (), and the ratio is ().

4.= = (): 10 = ()% = 24 ÷ () = () (decimal)

5. You are in the () row and () column of the classroom. Use a pair of numbers to indicate that your position is (,).

Of the four numbers 6.0.523, 0.53% and 0.5, the number of is (), and the smallest number is ().

7. Xiaoming has 50 cents and 1 cent * * 18 coins in his piggy bank, and one * * has 5 yuan. Then there are () coins with 50 cents and () coins with 1 minute.

8. The following is a statistical chart of sixth-grade students' eyesight in our school.

(1) There are 76 people with normal vision and () people with myopia.

There are () people with pseudomyopia.

(2) Students with pseudomyopia are less than those with normal vision.

(3) The ratio of students with normal vision to students with abnormal vision is ().

9. According to China's regulations, if an individual's monthly income exceeds 2,000 yuan, the individual income tax will be paid at the rate of 5%. Xiaohong's mother earns 2360 yuan a month and should pay personal income tax () yuan a month.

10. In math class, Xiaolan cut a piece of circular paper with an area of 9.42 square centimeters. You can guess that she should prepare at least () square centimeters of paper.

Second, you can tell the truth from the truth with a sharp eye. (5 points)

1、 15÷(5+ )= 15÷5+ 15÷ =3+75=78。 ( )

2. A ton of coal was used, and it was shipped here again. Now the coal is still 1 ton. ( )

3. Two circles with the same radius have the same shape and size. ( )

Xiaohua's weight is equal to Xiaoming's, and Xiaohua is heavier than Xiaoming. ( )

5. The picture on the right is axisymmetric. ( )

Iii. Happiness A, B and c. (5 points)

1. The original price of a commodity is 200 yuan. After the price increases by 15%, the price decreases by 15%. The current price is () times the original price.

A, higher than B, lower than C, equal to D, incomparable.

2, grandpa cut a wire into two sections, the first section is meters long, the second section accounts for the whole length, then ()

A, the first paragraph is B, the second paragraph is C, and the two paragraphs are as long as D, so it is impossible to judge.

3, a cup of salt water, salt accounts for the proportion of salt water, the ratio of salt to water is ()

a、3: 17 B、 17:3 C、3:20 D、20:3

4. The circular flower bed has a radius of 3m, and a gravel road with a width of 1 m is paved around the flower bed, with an area of () m2.

a、28.26 B、50.24 C、 1.98D、2 1.98

Last year, the price of gasoline per kilogram was in 5.5 yuan. Compared with the same period last year, the price of gasoline has increased by 10% this year. Your understanding of the word "increase" is ().

What's the sales price this year? B, what was the selling price last year?

C, the price this year is a few percent higher than last year, and last year's price is a few percent lower than this year.

Fourth, relax.

1, calculate the following questions orally. (4 points)

÷8 = × = 5÷ = 3+3÷7=

× 15= 10÷ 10% = 28×75% = ×8× =

Please solve this equation. (6 points)

5X-3× = + X=

3. Do it the way you like. (12)

× × - ×58+ ×4 1+

× + ÷ ÷[( - )÷ ]

4. Column calculation. (8 points)

(1) plus the quotient of division, then multiplied by the sum, (2) 20% of a number plus the sum is 2,

What is the product? Find this number. (using equation)

Fifth, practice the world.

1. In the square in the figure, the part of 12.5% is shaded. (2 points)

2. Convert a circle into an approximate rectangle. It is known that the circumference of a rectangle is 4 cm more than that of a circle. Please try to draw this circle. (3 points) (2) Please calculate the area of this circle. (3 points)

Sixth, mathematics and life. (28 points) (1 and 4 points for 2 small questions, with 5 points for each other)

1, 50 homework assignments in the class were handed in, but the teacher said that two homework assignments were wrong. Do you know the correct rate of this assignment?

2. A slogan of instant noodles reads: "The amount of gifts is 25%, and the price will not increase if the amount is increased." Now the weight of a bag of instant noodles is 120g. Do you know how many grams it was before the gift?

Xiaoming and Xiaogang go home by taxi. Xiao Ming got off the bus when he arrived at the whole journey. Xiao has just reached the finish line. The two of them paid the fare, 25 yuan. What do you think is the most reasonable payment method for Xiaoming and Xiaogang? Please explain the reason with mathematical knowledge.

For the sake of drinking water hygiene, the school is going to give each student a special cup. Each cup is priced at 2 yuan. Which store do you think is cheaper to buy? How much cheaper is each cup?

Can you help Uncle Zhao to calculate how much principal and after-tax interest he will get according to the following deposit slip?

China Rural Credit Cooperative Zhengzhou Rural Credit Cooperative () deposit receipt

Account (loan) voucher number. June 5438, 2003+February 65438 +00:

Seed storage: the current account is fixed at √ zero, the whole account is kept in the notice account, and the education account is kept in the one-card account. Others-

client

Fill in account name: Zhao Daming Jin.

Term: 5 years, amount 1 100 million yuan.

be filled/suffused/brimming with

2 5 0 0 0 0

Deposit amount: two thousand Wu Bai Yuan only.

Credit cooperatives fill in account name: Zhao Daming Term: 5 years, annual interest rate: 2.28%.

Kaben account number: 3 128643 balance: outlet number: serial number:

Deposit date: 65438+February 2003 10 Maturity date: 65438+February 2008 10 Operator: 0 1.

6. When the bus101arrives at Yanhuang Square, some passengers get off and 14 people get on. At this time, there were 30% more passengers on the bus. How many passengers are there in the car?

It's done, you're amazing! Check it carefully.

Answers to the final questions of the first volume of sixth grade mathematics (People's Education Edition)

First, think carefully and fill in carefully. (24 points)

1、4 1/2 3/7

2、25%

3、3:4 3/4

4、20 6 60 40 0.6

5. The answer is no.

6、6/ 1 1 0.5

7、8 10

8.( 1)60 people, 64 people. (2) 12 people. (3) 19:3 1

9 18 yuan.