Name category

First, I will fill in:

1.35 and 7, () is divisible by (), () is a multiple of (), and () is a divisor of ().

2. Both cuboids and cubes have () faces, () edges and () vertices.

3. The side length of a cube is 5 mm, the sum of the side lengths of the cube is () dm, the surface area is () dm2, and the volume is () dm3.

4. The sum of three consecutive odd numbers is 2 1, which are (), () and () respectively.

5. Among natural numbers 1 ~ 20, the smallest composite number is (), the smallest odd number is (), the even number is prime number is (), and the odd number is composite number is ().

7. The sum of the edges of a cuboid is 84 cm, 8 cm long, 7 cm wide, () cm high and () cm square in surface area. ..

8.5 kg of sugar is divided into 6 portions on average, each serving is 5 kg () and each serving is () kg.

9. Fraction, when X= (), is the decimal unit of this fraction; When X= (), it is the maximum true score; When X= (), it is the smallest mistake; When X= (), its fractional value is 1.

10. expressed as a fraction:

25 minutes = () 3080 kg = () tons.

3: 00 = () 4 square meters and 5 square decimeters = () square meters.

Secondly, I will judge:

1. The numerator and denominator of the fraction are multiplied or divided by the same number at the same time, and the size of the fraction remains unchanged. ( )

2.3m 1/5 is as long as 3/5 of1m. …………………………………… ( )

3. False scores are all greater than 1. ……………………………………………… ( )

If the volumes of two cuboids are equal, their surface areas are equal. ……( )

5. The maximum approximate number and minimum multiple of18 are equal. ………………………… ( )

Third, I will choose:

1. A composite number has at least () factors.

A. 1 D. 2

2. When two prime numbers are multiplied, the product must be ().

A. prime number B. odd number C. composite number D. even number

3. The side length of a cube is 6 cm, and its surface area is () compared with its volume.

A. same size B. large surface area C. large volume D. unparalleled

4. When the side length of a cube doubles, its volume increases ().

A.2 times B. 4 times C. 8 times

5. In the following figure, there is an expansion diagram that is not a cube, and its number is _ _ _ _ _ _ _ _.

Four. Practical problems:

1. Fill in the appropriate number in the box below, fill in the false score above the straight line, and fill in the score below.

2. Decomposition of prime factors of the following numbers by short division.

54 9 1 108 36

3. Look at the pictures and calculate their volume and surface area. (Unit: decimeter)

4. Draw a symmetrical figure according to the given symmetry axis. Then draw a picture of the original image moving up 2 squares and then moving 4 squares to the right.

Comprehensive application of verb (abbreviation of verb);

1. The canteen bought 8 tons of coal, and it burned out in 1 1 day. How many tons of coal are burned on average every day? (expressed in fractions)

2. A wire is divided into three sections, the first section is 3 meters long, the second section is 4 meters long and the third section is 5 meters long. How much is each plate?

3. A cubic box without a lid has a side length of 4 decimeters. What is its surface area in square decimeters?

There is a cubic water tank, and the length of each side is 5 mm from the inside. If you pour a full box of water into a rectangular water tank with a length of 8 decimeters and a width of 25 centimeters, what is the water depth?

5. A rectangular piece of paper, 48 cm long and 36 cm wide. Cut this paper into square paper with the same size and no excess. What is the longest side of the square?

On the development of intransitive verbs

1. Draw all six faces of the cube, as shown:

(1) Three sides are coated with () small cubes;

(2) two sides are painted with () small cubes;

(3) One side is painted with () small cubes;

(4) There are () unpainted cubes;

2. The length, width and height of a cuboid are three continuous natural numbers with a volume of 120 cubic centimeter. How many square centimeters is its surface area?