The application problem of normalization is to normalize directly to find a unit quantity, and then multiply it to get the result. After finding the unit quantity by inverse normalization, the result is obtained by inclusion division. From the structure of application problems, given a quantity and quantity, the total number (total work) can be obtained according to the first two conditions, and the total number is fixed, and then the number of units can be obtained according to the total number. Total number of copies = number of copies, total number of copies = number of copies. There must be a constant in the application problem. If the speed of the car remains the same, the number of hectares cultivated by the tractor per hour remains the same. In the application problem of normalization problem, we often use words such as "calculate like this" and "use the same ……" to represent constants, so we should grasp the corresponding relationship of quantities in the problem. Normalization application problems are divided into positive normalization application problems and negative normalization application problems. The similarities between them are as follows: generally speaking, the first step is to find the single quantity; The difference is that in the second step, the problem of normalization is to find out how many singletons there are, and the problem of denormalization is to find out how many singletons there are.

Normalization is developed on the basis of simple application of division. The key is to find out what the "unit quantity" is by division, take it as a fixed quantity, and then find out other quantities.

example

1, a turtle climbed in 3 minutes 12 decimeter. At this speed, how many decimeters does 1 hour crawl?

I typed 60 words in 5 minutes. How many words can he type in 20 minutes at this speed?

Xiao Ming can type 60 words in 5 minutes. At this rate, how many minutes will it take him to type 240 words?

Clothing factory can process 160 pieces of sportswear in five days. At this rate, how many sportswear can be processed in a week?

The weaving factory has to weave 3600 meters, and it has woven 960 meters in 8 hours. According to this calculation, how many hours can it complete the task?

6. A grain processing factory grinds 24 tons of flour and grinds 8 tons in 4 hours. According to this calculation, how many hours will it take to grind the remaining flour?

7. Bamboo weaving group, 8 people can weave 144 refined bamboo blue in 3 days. According to this calculation, how much can 12 people knit in six days?

8. There are 65,438+06 people in the workshop of a light bulb factory, and 65,438+00,560 light bulbs are produced in four days. At this rate, how many days will it take for 20 people to produce 42,900 light bulbs?

Four workers in the electric fan factory can install 80 electric fans in five hours. /kloc-how many workers do you need to install 384 electric fans in 0/2 hours?