1, 1, 2,5, 15, the prime number has (), the composite number has (), and () is the common factor of these numbers.

The minute hand of the clock turned from 3:25 to 3:40, and the minute hand () turned () degrees.

3.A is a natural number greater than 0, the maximum factor of A is (), and the minimum multiple is ().

4.= = 18÷( )= () (fill in decimal places)

5. Fill in the appropriate scores in the numbers.

(1)40 points = () 350ml = () l.

(2) > () > 3 yuan 5 points = () yuan.

The greatest common factor of 6, 24 and 42 is (), and the least common multiple of 24 and 42 is 24 times ().

7. There is a cube dice with six numbers 1, 2, 3, 4, 5 and 6 on it. When you roll the dice once, the possibility of getting a composite number is, and the possibility of getting an even number is.

8. The wolf can do magic. When the side length of a Rubik's cube is tripled, its volume will expand to () times and its surface area will expand to () times.

9. The number of plastic bags thrown away by 8 families surveyed by Slow Sheep every week is as follows:

1 1 10 18 9 10 16 4 10

The median of this set of data is (), the mode is (), and the average is ()

10, there are two identical cuboid cartons below. Now it is necessary to assemble these two cuboid cartons into a cuboid for packaging.

Think about it, how to pack the most economical wrapping paper? And say why? (can draw)

.

Two. Let me judge. Mark "√" for the right and "×" for the wrong (5 points).

1, the common factor of two different prime numbers is only 1. ( )

2. True scores are all less than 1 and false scores are all greater than 1. ( )

3. Expand the appearance of the cube to the right. ( )

4. Dissolve 3 grams of salt in 20 grams of water, and salt accounts for salt water.

Pleasant Goat and Slow Goat had a problem-solving competition. Slow Sheep did 5 questions in 4 minutes, Pleasant Goat 1 minute did a question, and Slow Sheep did it quickly. ( )

Third, I will choose. (Fill in serial number) (12 points)

1, a bottle of ink is about 60 ().

L b, ml c, m3.

2. After adding 40 to the denominator, in order to keep the size of the fraction unchanged, the numerator should add ().

A, B, C, 25

3. Cut a cuboid into two pieces. Regarding the relationship between the two cut pieces and the original cuboid, the following statement is correct ().

A, surface area and volume unchanged b, volume unchanged, surface area increased c, volume unchanged, surface area decreased.

4. The picture on the right is cut out by ().

A, B, C,

5. Lazy sheep accidentally broke a rectangular glass fish tank with a length of 8dm, a width of 4dm and a height of1m.. Fortunately, the left, front and back of the fish tank are still intact, and it needs to be repaired with () m2 glass.

a、68 B、 1.04 C、 1.4 D、2

6. There are 20 teacups on the table, and the numbers from 1 to 20 are arranged in a row.

For the first time, Meiyangyang turned the even cups once;

The second time, the boiling sheep will turn the cup numbered as a multiple of 3 over;

For the third time, the lazy sheep turned the cup numbered as a multiple of 5.

Now there is a () cup mouth facing up. (Turn your mouth up once, turn your mouth down once, turn your mouth down once)

a、 12 B、0 C、 10 D、 1 1

Fourth, I will calculate (24 points)

1, write directly. (8 points)

7.2+3.8=

2. Solve the equation. (4 points)

3. Calculate by your favorite method. (12)

Five, I can draw (8 points)

1, please draw the known figure about the straight line in the dotted line diagram. 2. Please translate or rotate the known figure, the axisymmetric figure of L. Design beautiful patterns.

Six, I'll solve the problem. (27 points)

1, only column type, not counting (4 points)

(1) On Sunday, Pleasant Goat bought some apples and pears to visit her grandmother. Fruit * * * weighs 4 kg, including pear 1 kg. How many kilograms are pears lighter than apples?

(2) The following is the experiment that Beibei did when she measured the potato volume. (Unit: cm)

Please calculate the size of potatoes.

2. A basket of apples, three plots, five plots and seven plots. What is the minimum number of apples in this basket? (4 points)

3. The water pipe in Boiling Sheep's house is broken. This is a steel pipe. Boiling sheep used full-length for the first time and full-length for the second time.

(1) Please show the parts used for the first time and the second time respectively in the diagram. (2 points)

(2) What fraction of the total length is left? (2 points)

4. The statistics of sports standards in Class Two, Grade Five are as follows:

Excellent, good, pass, fail, just right, just right, just right.

(1) What's the percentage of outstanding students in the class? Okay, what about it? (2 points)

(2) Excellent, good and passing are all qualified. What percentage of students in this class are qualified? (2 points)

(3) What is the probability that a classmate is randomly selected from the class and gets good grades or above? (2 points)

5. The shepherd decorates the warehouse.

A cuboid warehouse is 8m long, 6m wide and 4m high. Warehouse loading

There is a door with a width of 2m and a height of 2m (as shown on the right).

(1) What is the volume of this warehouse? (3 points)

(2) The ground shall be coated with moistureproof coating, with 0.8kg coating per square meter. How much does it cost to buy paint? (3 points)

(3) All the walls above the ground 1 m below the warehouse are tiled. What is the tile area? (3 points)

Reference answer

I. 1, 2,515, 1 2, cis 90.

3. Answer 4, 20 27 24 0.75

5.( 1) The answer is not unique (optional)

(2)3 6、6 7 7、 8、27 9

9,1010110, because the overlapping area is the largest.

Two. 1, √2, ×3, √4, ×5, √.

Third, 1, B 2, C 3, B 4, C 5, B 6, a.

Iv. 1, 1, 1 m 25

2、X= X=

3、 1 1

Verb (abbreviation for verb) negligence

Six 1, (1) 4-

(2) 12×8×(9.5-8)

Can you! If so, can it be adopted?

If people think sheep are naive, change them to Xiaoming, Xiaohong and Xiaohua. . . . . bar