1. Fill in the blanks (each space 1, * * * each space 39)

All factors of 1.24 have (), and all factors of 18 have (); The common factor of 24 and 18 is (), and the greatest common factor of 24 and 18 is ().

The factor of 2.27 is (), where () is both odd and composite.

A two-digit number is a multiple of 5, and the sum of the digits on each digit is 8. This two-digit number is () or ().

3. If the biggest factor of a number is 15, then its smallest multiple is ().

4. Among the scores of 3/4, 3 2/3, 6/ 18, 52/ 16, 8/8, 3 6/7 and 3/9:

The real score is (); The false score is ();

The score is (); Among them, the simplest score is ().

5.13117 is (), and 7/ 15 is ()1/5.

6. In descending order, 3.4 1, 8/3,3 and1/2,3.14 () > () >; ()& gt( )

7. Fill in the following table:

8 and 9 12 and 24 15 and 18.

The greatest common factor of two numbers

Least common multiple of two numbers

8. Distribute 3 kilograms of apples to five children equally, each child gets () kilograms, and everyone gets () of all apples.

9. Fill in the table below.

Graphic bottom/cm height/cm area/cm 2

Triangle 14 6

35 49

Parallelogram 12.5 137.5

15.5 9.6

Trapezoidal upper and lower soles 4.8

10.5 9.5

10. The picture below shows the room plan of Allen's house.

(1) bathroom area accounts for () of the total area; (2) the kitchen area accounts for () of the total area;

(3) bedroom area accounts for () of the total area. (4) The balcony area accounts for () of the total area;

(5) The canteen area accounts for () of the total area. 6. The main hall area accounts for () of the total area.

Second, choose. (2 points for each small question, *** 12 points)

1. () must be a multiple of 2 1.

A. Numbers that are multiples of 2 and 3 at the same time

C is a number that is a multiple of 7 and 3. D. two digits ending in 3.

2. Xiaoyu and Xiao Ai each donated 1/3 of their pocket money to Hope Project, and the amounts donated by them were compared ().

A. Little rain flowers B. Love flowers C. As many D. Can't be compared

3. As shown in the figure, the area relation of three triangles between two parallel lines is ().

A. Inequality

4. Decide whether the following result is even or odd.

The sum of ① 785+547 is (), and the result of ② 675+54-465 is ().

③ The product of 75× 71is (); ④ The product of odd× odd is ().

A. odd number B. even number

5. In the figure below, the area of the shaded part is compared with the area of the blank part ().

A, the shadow area is large.

B, the blank area is large.

C, the area is equal.

6, 57□2 is a multiple of 3, and the number in □ may be ().

a、3 B、5 C、7

3. True or false. (5 points)

1. All prime numbers are odd except 2. ( )

2. Of course, two trapezoids with equal areas can form a parallelogram. ( )

3. Change 5/7 to 50/70, and the size of the score will be increased by 10 times. ( )

4. A number with 0 must be a multiple of 2, 3 and 5. ( )

5.13,51,47,97 are all prime numbers. ( )

4. Divide 3/8, 2/5, 8/7, 3/7 and 4/5 into one point. (No.65438 +0, ***5)

V. Draw a picture, measure and calculate (15)

(1) Draw the height on the bottom edge of each figure above and measure its length (the number of whole centimeters is reserved for the measurement result). (2 points for each picture, ***6 points)

(2) Calculate the area of each figure above. (3 points for each picture, ***9 points)

Parallelogram trapezoid: triangle:

Six, solve the problem (24 points)

1. There are two ropes, one is 36 decimeters long and the other is 48 decimeters long. Cut them into small pieces of the same length, and there is nothing left. What is the longest decimeter in each section? How many segments can a * * * be cut into? (6 points)

2. The shadow area in the figure below is 15 square decimeter, so what is the area of parallelogram ABCD? (5 points)

3. Xiaowen and Han Xiao ran from A to B. Xiaowen took1115 minutes, and Han Xiao took 3/4 minutes. Which of them runs fast? (5 points)

4. There is a basket of pears, whether it is distributed to 9 people or 12 people, there are two missing. How many pears are there at least in this basket? (4 points)

There was a light in the classroom, and suddenly the power went out. After the power failure, Naughty pulled the switch of the light. After a while, Xiaoxiao also pulled the switch. If there are 45 students in this class, everyone pulls the switch. Is the light on or off after the phone call? Can you explain why? (4 points)