The application questions will not be fast, what should I do if I can t do the application problems

1.The art interest group made a cuboid model out of 60cm wire. The length of this cuboid is 6 cm, the width is 5 cm, and what is the height of the box? (Wire loss is not counted).

60 4-6-5 = 4 (centimeters).

2.To make a cuboid fish tank without a lid out of glass, 6cm long, 4cm wide, and 5cm high, how many square decimeters is needed at least? Now the depth of water in this fish tank is 2 decimeters, how many liters of water is in the fish tank? (Glass thickness is not counted).

6 4 + 6 5 2 + 4 5 2 = 124 (square centimeters).

6 4 20 = 480 (ml) = liters).

3.Cut a piece of cloth 24 cm long and 21 cm wide into a square handkerchief as large as possible. What is the square centimeter area of this square cloth handkerchief?

21 21 = 441 (square centimeters).

4.A rectangular glass tank with a base area of 200 square centimeters and a height of 8 centimeters, which contains water 4 centimeters deep. Now put a stone into the water and raise the surface of the water by 2cm. What is the volume of this stone in cubic centimeters?

200 2 = 400 (cubic centimeters).

1,3 (length + width + height) = 60, count yourself as tall.

2, is the length, width and height given in this question a little wrong?,It should be 6dm,4dm,5dm.。

2 (length * height + height * width) + length * width = ??

Replace the length, height, and width to calculate the result.

3. Cut a square handkerchief with 21cm as the side length.

4. The volume of the stone is equal to the volume of the rising water surface, and the volume of the stone is the bottom area multiplied by the distance of the rising water surface.

60 - (6 + 5) x4 16 divided by 4 = 4 (cm) 60 - 11 x4

60-44 A: The height is 4cm

16(cm)

6x4+6x5x2+5x4x2

124 (square centimeters).

A: A minimum of 124 square centimeters is required.

The second question is wrong, the height of the fish tank is only 2 centimeters, how can there be 2 decimeters of water? Either you made a mistake or you made a typo.

24-3=21cm

21x21 = 441 square centimeters Answer: The area of a square cloth handkerchief is 441 square centimeters.

4+2=6cm

6x200 = 1200 cubic centimeters.

200x4 = 800 cubic centimeters.

1200-800 = 400 cubic centimeters.

A: The volume of this stone is 400 cubic centimeters.

Some students are scared when they see the application problem, and they don't know where to start the analysis, so let's talk about some basic methods of analyzing the application problem.

First of all, it is necessary to learn simple application problems, which is the basic skill of solving application problems. This is because compound problems are made up of several simple problems.

How do you analyze a compound problem? Due to the different thinking processes, there are two types of methods: synthesis and analysis. The comprehensive approach is to start from the known conditions and gradually introduce the problem to be solved; The analytical approach starts with the problem and works back to the known conditions.

For example, the Red Leaf Garment Factory plans to make 660 sets of clothes, and has been doing it for 5 days, with an average of 75 sets per day. The rest should be done in 3 days, how many sets do you make per day on average?

Analytical analysis: how many sets are required to be done per day on average, it is necessary to know how many sets are left (unknown) and how many days to be done (known) for the remainder; To ask for how many sets are left, you must know how many sets you plan to do (known) and how many sets you have done (unknown); To ask how many sets have been made, it is necessary to know how many sets (known) and how many days (known) they have been done on average per day. In this way, the quantity relations in the new problem are found step by step, until the quantity relations required by the new problem are all known.

Analyze with comprehensive method: the question tells us that we have been doing it for 5 days, and we can find the number of sets made in 5 days; Knowing the number of sets planned to be done in 660 sets and 5 days, we can find the number of sets left; Knowing the number of sets left and the number of days left, we can find the average number of sets left to do per day. According to the known conditions given in the question, find the question that needs to be answered step by step.

When analyzing practical problems, the two methods are often used in conjunction with each other and flexibly. Use the comprehensive method to analyze the problem of taking care of the requirements at any time, and pay attention to the relationship between the known conditions and the problem; Analytical analysis should take care of known conditions at all times, and pay attention to the relationship between problems and known conditions. No matter what method is used to analyze the application problem, it is necessary to carefully examine the problem, understand the meaning of the problem, find out the intermediate problem (also called the key problem) by analyzing the quantitative relationship between the known conditions and the problem, and finally find the correct solution to the application problem.

Xiaohua made 8 red flowers, and Xiao Ming made as many orchids as Xiaohua, how many flowers were made in total.

Hell knows your sister! A kind,

1 inch = meter. 2500÷(26×

minutes A: It takes about 15 minutes.

1 inch = So the tire diameter of the bicycle of the floret is d = 26 * then the circumference of the tire l =

Then his velocity v=

Time t=25000 168 149min

I hope it helps you.

Solution: 27*8*yuan.

27*5=135 yuan.

Therefore, the loss is at least 135 yuan, that is, all the student tickets for orange pei.

The greatest common factor of 10, 16, and 20 is 2

Therefore, the maximum length of each segment is 2cm

A total of (10+16+20) 2=23 segments can be truncated.

A two-centimeter section.

The first one is divided into 5 sections.

The second root is divided into 8 sections.

The third root is divided into 10 segments.

In fact, it is to find the greatest common divisor of these three numbers.

It is divided into 23 paragraphs.

The greatest common divisor of 3 is 2, so each small segment is 2cm, a total of 23 segments.

The third root is divided into 10 segments.

In fact, it is to find the greatest common divisor of these three numbers.

It is divided into 23 paragraphs.

The volume of water x the volume of ice y

1+ Just substitute the amount of ice in the question.

Pay attention to the base of this kind of problem, such as a ** ticket first up limit (up 10%) and then down limit (10%), its stock price is lower than the previous one.

Let the volume after dissolution be x

Column equation x(1+1 10)=2

Find x=20 11