Write the numbers directly first (10, 0.5 for each small question)

1.5×4= 6.4÷0.8= 7.2×0.0 1= 10÷4=

0.36×2= 1÷0. 125= 0.25×8= 8. 1÷0.3=

0. 1×0.02= 1.6÷ 16= 2.4×2.5= 3.2÷ 1.6=

( 1.5+0.25×4= 3.5+7.6= 3×0.2×0.5= 12-6.2-3.8=

8×(2.5+0.25)= 2.56-0.37= 0. 125÷0.25= 7× 1.6 + 7×0.4=

Fill in the blanks (20 points, 4 points for each small question)

1.3.7×0.8 mean (); The product of 5.6 multiplied by two decimal places is () decimal.

2. Cyclic decimal 8.59696 ... is () decimal, and two decimal places are ().

3. The three sides of a right triangle are 3 cm, 4 cm and 5 cm respectively, and the area of this triangle is () square cm; The height on the hypotenuse is () cm.

4. The sum of x and 7.2 is (). 1.5 If the number exceeds 6 times of x, it is ().

5.6.4 hectares = () square meters; 1.2 hours = () hours () minutes.

Third, judge (draw "√" and draw "×" wrongly. 4 points, 65438+ 0 point for each small question)

1. If a number not equal to 0 is divided by a decimal less than 1, the quotient obtained must be greater than the dividend. ( )

2.3.33333 is a cyclic decimal. ( )

3. Decimal multiplication and integer multiplication have the same meaning. ( )

4. The area of triangle is equal to half the area of parallelogram. ( )

Choose (fill in the brackets after the question with the letter representing the correct answer. 4 points, 65438+ 0 point for each small question)

Use1.0.65× 201= 0.65× (200+1) = 0.65× 200+0.65 multiplication ().

A. commutative law B. associative law C. distributive law

2. The following two equations are equal ()

A.a+a and 2a B. a×2 and a2 C. a+a and a2

3. In the following formula, () is an equation. a . 5+XB . 4x = 0 c . 4x-6 >； five

4. A triangle and a parallelogram have the same area and the same base, so the height of triangle and parallelogram is compared ().

A. the height of a triangle is half that of a parallelogram. B.equal C. The height of a triangle is twice that of a parallelogram.

Verb (abbreviation of verb) calculation (34 points)

1, off-type calculation, which can be simplified (16, 4 points for each small question)

8.65-3.7+ 1.35-6.3 [2. 1+3.6 1÷(7.2-5.3)]×30

1.2+36÷[ 1.44×(0. 1-0.05)] ( 16.5×3+3×7.5)÷6

2. Solve the equation and write the test (8 points, 4 points for each small question)

18.7-χ=7.8 3×0.5+6χ=3.3

3. Column calculation (10, 5 points for each small question)

(1) 3 times a number times 2 times this number equals 1.5. Find this number. (column equation solution)

(2) What is the product of the sum of 4.23 plus 0.72 multiplied by 3 minus 0.84? (column comprehensive formula calculation)

Six, the application problem (28 points, 7 points for each small question)

1. When a factory originally needed 144 to make a machine, it took 48 hours to make a machine after improving the technology. How many machines can you make now, instead of 60 machines?

Xiao Liang spends more money on books than pencils, 0.5 yuan. I bought three pencils at 0. 15 yuan each and five notebooks at 0.65438 yuan each. (column equation solution)

Xiaoming and Xiao Fang live in the same hospital. Xiao Fang walks 50 meters every minute when he goes to school, and arrives at school at 12. Xiaoming walks more than Xiao Fang at school 10 meter. How many minutes does it take Xiao Ming to get to school?

4. The bottom of a trapezoid is 220 meters long, the bottom is 340 meters long and the height is 57.5 meters, with 354.2 thousand oilseeds. How many kilograms of oilseeds are produced on average per hectare?

Additional questions (not included in the total score)

Cars A and B leave from A and B respectively and meet after 2.5: 00. When they met, B traveled 105 km, and continued driving after meeting. After the two cars A and B arrive at B and A respectively, they will drive back immediately. When they meet for the second time, B is 90 kilometers away from A, so we can find the distance between A and B.

Name of Class 5: Score:

I. Oral calculation: (6 points)

4.5+6.3 6.5+4.8 8.6+7.7 10.05+0.4 34.6-4.9

9-4.2 3.45÷ 10 65.5÷ 10 9.43÷ 10 3.2÷ 100

2.75× 10 6.783× 100 0.35×2 0.8×6 5.2+ 1.7

0.0 1×8 1.6×0.3 7.3 1× 100 3.8×4 6.3×0. 1

0.8×0.9 0.7× 1.2 2.5×0.4 4.5- 1.5 7.5-0. 1

0. 125×8 0.23×0.5 9.6+5 8.36+0.75 0.35×6

0.83+0.6 3. 16×2 0.65×2 4.7×0.4×0 0.09×6

0.4×0. 1 2.3×0.3 8.3-2.4 5×0.02 1.68+3.34

9.6÷6 0.03× 1.2 0.4+ 1.5 7.9×0.0 1 0.45+0.55

1.2+43 9.2-0.8 0.85×4 10.3+2.9 100×0.6

0.3×7 125×0.8 2.5×4 3.7+4.8 7×0.08

3.6÷0.6 9.3+0.7 0. 162× 100 4.2÷3 0.25×4× 1.2

Second, fill in the blanks. (15)

1. 12× 8 = 96, then 1.2×0.8= ().

2. A number (except 0) is multiplied by a number less than 1, and the product is greater than the original number ().

3. Use letters to represent the following units: meter (); Square decimeter (); g()。

Write the units represented by the following letters: t (); cm()； ㎡( )。

4.9ⅹ×ⅹ=(□+□)? 6? 1□

5. A book has 98 pages. Xiao Ming reads page ⅹ every day for four days (), and there are () pages left. 6 x means ()

6. The solution of equation 5 x = 15 is ().

7. If you play "Rock, Paper, Scissors" with Xiaoming, your chances of winning are ().

8. In a math test, the scores of six students in the fourth group are as follows:

Name Xiaoming Xiaohong Xiaoli Xiao Juan Xiao Qiang Xiaogang

achievement

The average value of this set of data is (), and the median value is (). I think it is more appropriate to use () to represent the general level of this set of data.

9. A person's ID number is:110/0219750119, and this person's date of birth is () month ().

10.6.64 ÷ 3.3 has a business cycle decimal (), and one digit after the decimal point is ().

Third, judge the question. (5 points)

1.a2 means that two a's are multiplied. ( )

2. Because two identical triangles can be combined into a parallelogram, the area of the triangle is equal to half the area of the parallelogram. ( )

3. Formulas with unknowns are called equations. ( )

Seen from the front, an object looks like this: then it must be composed of three small cubes. ( )

5.A is a natural number, and B is a larger natural number adjacent to it, so B-A = 1. ( )

Fourth, multiple choice questions. (5 points)

1. If you turn the pointer, the possibility that the pointer stops in the red area ().

○ 1 greater than○ 203 less than.

2. Looking at this group of objects from above, the shape you see is ().

○ 1 ○2 ○3

3. Calculate the area of the right parallelogram, and the correct formula is ().

○ 16×4 ○25×4 ○36×4÷2

The quotient of 4.20÷3 is ().

1 finite decimal 2 infinite acyclic decimal 3 cyclic decimal

5. There are 4 pencils, 2 ballpoint pens and 1 pencil in the pencil box. The possibility of choosing any one that is not a ballpoint pen is ().

○ 1 ○2 ○3

Fifth, the calculation problem.

1. column vertical calculation. (6 points)

1.7×0.45 (number with two decimal places) 12.6÷0.28= test.

calculate

2. Recursive equation calculation requires simple calculation. (12)

0.034×0.5×0.6 50.4× 1.9- 1.8

25.8+3.76×0.25 102×0.45

3. Solve the following equations. (10)

13ⅹ+65= 169 8ⅹ-3ⅹ= 105

ⅹ÷ 8 = 0.4 ⅹ+4.8 = 7.2 Test:

Sixth, operational issues. (6 points)

1. Try to find the area of the triangle below. 2. Find out the area of the sign below.

Seven, solve the problem.

(1) Answer as required. (5 points)

1. List the equation according to the quantitative relationship in the diagram, without solving it.

2. At 8 o'clock yesterday morning, the water level of Hongze Lake was 14. 14m, which exceeded the warning level by 0.6m. How many meters is the warning water level?

Please list a quantitative relationship:

(2) Column-based solution. (30 points)

1. A garment factory wanted to produce 540 coats, and it took 7.5 days to make them. How many coats do you make on average every day?

2. There is a shading cloth in the rear window of a car, the upper bottom 1m, the lower bottom 1.2m, and the height is 0.7m What is its area?

3. A parallelogram street billboard with a base of 12.5m and a height of 6.4m How many kilograms of paint do you need to decorate this billboard with oil?

4. There are 39 people in the school model airplane group, which is 2 times less than that in the computer group. How many people are there in the computer group?

5. In a toy factory, it turned out that making a stuffed rabbit needed materials from 3.8 yuan. Later, the production method was improved, and only materials from 3.6 yuan were needed for each piece. I was going to make 180 stuffed rabbits. How many can I make now?

My father is three times older than Xiaoming this year. It is known that my father is 24 years older than Xiaoming. How old are Xiaoming and Dad this year? 0 NK 0204 2009- 1 1-8 17: 19:37 60 . 22 . 23 1。 * Report Mathematics

Fill in the blanks. (20 points)

(1), 5×0.5 means () and 0.8×4 means ().

2, 4.2×2.5 is 4.2 ().

(3) It is known that the product of two factors is 4.2, one of which is 7 and the other is ().

④ 0.8 enlargement 100 times is (), and () reduction 10 times is 0.87.

5], 2.7 accurate to the percentile is (), keep three decimal places is ().

[6], 0.6 hectares = () square meters 0.25 hours = () minutes.

Once, the periodic cross section is 0.247247 ... is (), and two decimal places are (), which can be written as () in a simple way.

⑻ The product of1.8× 3.02 has () decimal places.

Levies, 1.7÷0.5 When the quotient is 3, the remainder is ().

⑽ When multiplying two factors, if one factor is amplified by 2 times and the other factor is amplified by 4 times, the product is amplified by () times.

⑾, 3.5 1, 3.505 and 3.505, the largest is () and the smallest is ().

⑿ If 4 ÷ A < 4, then A must be ().

[13]. After the decimal point is shifted one place to the right, the sum with the original decimal point is 12. 1, and the original decimal point is ().

Second, judge. (8 points)

(1) Add 0 or remove 0 after the decimal point, and the size of the decimal point remains unchanged. ( )

(2) Fractional division has the same meaning as integer division. ( )

(3), 3.142142142 are pure cyclic decimals. ( )

(4), a non-zero natural number multiplied by a decimal, the product must be less than this number. ( )

5] When calculating decimal addition, subtraction, multiplication and division, the decimal points must be aligned. ( )

[6] The arithmetic of integer multiplication is also applicable to fractional multiplication. ( )

At one time, similarity number 7.33 and similarity number 7.330 were equal in any case. ( )

Existence, cyclic decimal must be infinite decimal, and infinite decimal must also be cyclic decimal. ( )

Third, choose. (8 points)

(1), dividend unchanged, divisor decimal point shifted to the right by two places, quotient ().

A, expand 100 times b, reduce 100 times c, unchanged.

(2) The quotient of 28 ÷11is ().

A, pure cyclic decimal b, mixed cyclic decimal c, finite decimal

(3) If the decimal point of a decimal moves two places to the left, the number will be ().

A, expand by 2 times b, reduce by 100 times c and expand by 100 times.

(4), the following accurate to 0.0 1 is ().

a、0.6938≈0.694 B、8.045≈8.0 C、9.6954≈9.70

5], the largest number of the following formulas is ().

a、6.98× 1 B、6.98×0.98 C、6.98× 1.98

[6], a number expanded 42 times is 78.2, and the formula for finding this series is ().

a、78.2×42 B、78.2÷ 42 C、42 \78.2

Once, the car is 0.05 hours 1.5 kilometers, and the average number of kilometers per hour is ().

a、 1.5÷0.05 B、0.05÷ 1.5 C、 1.5÷ 1

(8) The number of boys in Class A accounts for half of the total number of students in Class A, and the number of boys in Class B accounts for half of the total number of students in Class B. The number of boys in Class A and Class B is compared ().

A, equal b, unequal c, uncertain

Fourth, calculation.

(1), oral calculation. (5 points)

1.5×9+ 1.5= 0. 15×24= 6.3÷0.7=

3.2×0.5×0= 1.6÷0.4÷0.5=

(2) Use vertical calculation. (4 points)

5.8×0.325 78.58÷3.7 (the number is kept to two decimal places)

(3), calculation. (Simplification that can be simplified) (12 points)

( 16.5×3+7.5×3)÷6 1.25×0.84×80-84

4.75+50÷8×0.4 9.56×8+9.56×2

(4) Column calculation. (8 points)

1, 8 times a number is 7.5, how much is half of it?

What is the difference quotient between 2.8.2 and 1.2 divided by the sum of 2.5 and 1.5?

Fifth, the application problem. (35 points)

(1), how many kilometers does a car travel per hour on average when it travels 35 kilometers for 0.5 hours?

2, a workshop to process 9000 parts, known processing for 5 days, an average of 800 pieces a day, the rest of the requirements for 4 days to complete, the average number of pieces a day?

(3), a batch of goods, each batch of 5.5 tons, 10 times can be shipped out, if you want to ship out 8 times, how many tons will be shipped out on average each time?

(4) In Xiaoming's mid-term exam, the average number of words is 97, and the average number of natural subjects is 97.5. How many points did Xiaoming get in the natural exam?

A professional household keeps 3500 chickens and ducks. It is known that the number of ducks is 2.5 times that of chickens. How many chickens and ducks are there?

The canteen brought 7000 Jin of rice, 2.5 times less than flour. How many kilograms of flour were shipped?

On one occasion, two cars, A and B, walked back from AB, with a distance of 20 kilometers. Party A travels 80 kilometers per hour, which is twice the speed of Party B. How many kilometers are the two cars apart after five hours? On this website: /wenda/thread? tid = 27 a9 ada 9 e 2 12a 2b 1