Xiaoshengchu Mathematics Examination Paper 20 17 People Education Edition Answers

fill (up) a vacancy

1, 5.037 million yuan (), and the mantissa of 7295300 after omitting "ten thousand" is about () ten thousand.

2. 1 hour 15 minutes = () hours, 5.05 hectares = () square meters.

3. In 1.66, 1.6, 1.7% and 3/4, the maximum number is () and the minimum number is ().

4. On the map with the scale of 1: 3000000, the distance from A to B is 3.5cm, so the actual distance from A to B is ().

5. The sum of numbers A and B is 28, the ratio of A and B is 3: 4, the number B is (), and the difference between numbers A and B is ().

6. If a two-digit decimal point is removed, the new number will be 47.52 more than the original number. These two decimal places are ().

7. Numbers A and B are prime numbers. Their greatest common factor is () and their least common multiple is ().

8. Xiaohong deposited 2,000 yuan in the bank for one year, with an annual interest rate of 2.68% and interest tax of 5%, and earned interest of () yuan at maturity.

9. Cut the largest circle on a square with a side length of one centimeter. The perimeter ratio of this circle to this square is ().

10, a kind of iron wire 1/2 m weight 1/3 kg, this kind of iron wire 1 m weight () kg, 1 kg length () m.

1 1, cylinder and cone have the same volume and the same bottom area. It is known that the height of cylinder is 12 cm and the height of cone is ().

12. It is known that the product of two external terms in a proportion is the smallest composite number, one internal term is 5/6, and the other internal term is ().

13. a car goes from city a to city b, with a speed of 30 kilometers per hour when it goes, and 25 kilometers per hour when it comes back. The speed ratio of the departure and return journey is (), while the distance ratio of the journey is (), and the time ratio required for going back and forth to AB is ().

Second, judgment.

1, decimal is less than integer. ( )

2. Divide a rope with the length of 1 m into five sections, each section is 1/5 m long. ( )

3. If 1/4 of A is equal to 1/6 of B, the ratio of A to B is 2: 3. ( )

4. Any prime plus 1 must be a composite number. ( )

5. If the radius is 2 cm, the circumference and area of the circle are equal. ( )

Third, choose

1, the number of days in the first quarter of 2009 is ()

A, one more day in the first quarter, b, equal days, c, and 1 multiple days in the second quarter.

2. The minimum acute angle of a triangle is 50 degrees. This triangle must be a () triangle.

A, obtuse angle b, right angle c, acute angle

3, a commodity price increase by 5% first, and then reduce the price by 5%, and then ()

A. The current price is lower than the original price B, higher than the original price C, and the current price is the same as the original price.

4. After% after 12.5% is removed, this number is ().

A, expand to the original 100 times b, reduce the original1100 c, and keep the same size.

Grandpa Sun is one year old and Uncle Zhang is 20 years old. X years later, they were separated by () years.

a、20 B、X+20 C、X-20

6. There are six points in the middle of a line segment, so these eight points can form a line segment ().

a、2 1 B、28 C、36

Fourth, calculation

1, a number written directly.

2. Find the area of the shaded part (unit: cm).

Comprehensive application of verbs (abbreviation of verb)

1. Two shopping malls sell washing machines. Mall A sold 980 sets in January, more than Mall B 1/6. How many sets did Mall A sell more than Mall B?

2. The machinery factory plans to produce 800 sets, with an average of 44 sets per day, which takes 10 days. The remaining tasks will take 8 days to complete. How many sets will be produced on average every day?

The classroom should be paved with square bricks. It costs 960 yuan to use a square brick with a side length of 3 minutes. If you use a square brick with a side length of 2 decimeters, how many pieces do you need? (Use proportional solution)

4. The area of a rectangle with a length of12cm is 36cm2 smaller than that of a square with a side length of12cm. How many centimeters is the width of this rectangle?

5. Planting trees in three classes in grade six. The task allocation is: Class A should plant 40% of the total number of three kinds of plants, and the ratio of the number of plants in Class B and Class C is 4: 3. When Class A planted 200 trees, it just completed 2/7 of the total number of trees planted in the three classes. How many trees are planted in Class C?

20 17 Nanyang xiaoshengchu mathematics examination paper answers

1. Fill in the blanks (65438+ 0 for each blank, ***20 for each blank).

Second, the judgment (65438+ 0 points for each small question, ***5 points).

1、× 2、× 3、√ 4、× 5、×

Third, the choice (2 points for each small question, *** 12 points).

1、C 2、C 3、A 4、A 5、A 6、C

Four. Calculation (9+8+ 12+3+2)

1, write the numbers directly (each small question 1 point, ***9 points).

2. Find the value of x (4 points for each small question, 1 point for each step, * * * 8 points).

3. Simplify what can be simplified (3 points for each small question, *** 12 points).

4, find the area of the shadow part (3 points)

6×6÷2