Pound recommends mock fill in the blank questions for the primary math graduation exam

Xueersi 2012 summer and autumn new junior high school first grade entrance test questions.

Name. District.

School. Grade.

Fraction. Exam Paper Description:

The answering time is 40 minutes, a total of 10 questions, and you must complete them independently!

Scores for completely correct answers, and no points for multiple solutions, missed answers, or wrong answers

1.A and B work together to process a batch of parts, and the task can be completed in 8 hours. If the A is processed alone, it takes 12 hours to complete. How many hours does it take to find B alone?

Answer: 242It is known that the area of the square in the figure below is 5 square centimeters, and the area of this circle is ( ) square centimeters. ( Take.

Answer: 3In the figure below, the number of squares is

Answer: 104Define a new operation if 2 3 = 2 + 3 + 4, 5 4 = 5 + 6 + 7 + 8, known x 5 = 100, then x =

Answer: 185Calculations: .

The first layer from the inside out consists of 6 squares and 6 triangles, the second layer contains 6 squares and 18 triangles, and so on, the first 8 layers contain the number of triangles

Answer: 384

7.The monthly water payment per household in Chongqing has been adjusted from the original per cubic meter to the following adjustments:

Water. 20 cubic meters and below.

20 cubic meters or more.

Fees: yuan per cubic meter.

yuan per cubic meter.

According to the above information, the water bill of Uncle Pei's family living in Huayu Plaza in March this year is more than the original payment according to the new charging standard, and the water consumption of Uncle Pei's family in March this year is cubic meters?

Answer: 408Uncle Li was going to work at 3 o'clock in the afternoon, and he estimated that it was almost time to go to work, so he went to look at the clock in the house, but the clock stopped at 12:10.

He hurriedly wound the clock, forgot to check his watch in a hurry, and went to work, and when he arrived at the factory, he saw that there were still 15 minutes before the time to go to work. After getting off work at 11 o'clock at night, Uncle Li came home and saw that the clock was only 9:15 minutes, and if Uncle Li took the same amount of time to get to and from work, then his clock stopped for a minute.

Answer: 130

9.If the number of students in a school is a three-digit number, with an average of 36 students per class, if the number of 100 digits and 10 digits of the whole school is reversed, the number of students in the whole school is 180 fewer than the actual number, then the maximum number of students in the school can be reached.

Answer: 972

10.In the figure on the right, the area of the large square is 1, and the three equal points on each side of the square are connected sequentially to get two small squares The area of the shaded part in the figure is Answer:

..500 million and 3 million, 100 million, <1 and 1 third<,1200, 1200*2-200=2200 153 ...1. 500 million and 300 million, 100 million ...

The answer to the first question is 50 km.

Let's look at page x.

Columnable (x+56) 3 4 = x 5 2

Solution x=64

64+56) 3 4=160 pages.

Let this book be an x-page equation.

2x/5 + 56 = 3x/4

Solve the equation. x = 160

Upstairs, please see clearly, this is an elementary school.

1.Calculations: .

2. There are 180 people in three workshops of a factory, the number of people in the second workshop is more than 3 times the number of people in the first workshop, and the number of people in the third workshop is half of the number of people in the first workshop.

9, multiplied and divided by addition, subtraction, multiplication, and division is equal to 21. (parentheses can be used) 9 9 9 9 9 = 21

4. 8 8s, between addition, subtraction, multiplication and division, equal to 1999. (parentheses can be used).

8 8 8 8 8 8 8 8 8 = 1999,2,5,13,34,89,()6, put 2004 squares in a row, A. Second. C: The three children took turns dyeing the squares in turn.

From the first one, A dyes one square red, B dyes two squares yellow, C dyes three squares blue, A dyes four more squares red, B dyes five squares yellow, C paints six squares blue, ,......Until all the squares are colored. How many squares are dyed blue?

Students line up in a rectangle to do exercises, the number of rows and columns are greater than 1, how many ways are there to arrange?

8. Write a number of consecutive natural numbers so that their sum is 1680.

9. Divide the average of the eight books into two groups so that the product of the four numbers in the two groups is equal.

Students line up in groups to go on a tour, and the number of people in each group should be the same, no less than 6 people in each group, no more than 15 people, how many divisions are there? How to divide it?

11. There is a rectangle, its length, width, and height are three consecutive natural numbers, and the volume is 3360 cubic centimeters.

12. Divide the nine numbers into three groups equally, multiply the products of each group's numbers, and write these three groups of numbers.

13. The number A is 9 larger than the number B, and the product of the two numbers is 792, what are the numbers A and B respectively?

14. The product of four consecutive odd numbers is 19305, what are the four odd numbers?

15. There are four children, one happens to be 1 year older than the other, and the age of the 4 is 3204, how old is the oldest of the four children?

16. There are three natural numbers a, b, and c, and we know a b 30, b c 35, and c a 42, what is the product of a b c?

17. A bunch of watermelons, the first time they sold 1 4 and 5 of the total number, the second time they sold the remaining 1 2 and 4, there are 4 left, how many watermelons are there in this pile?