0 04 28 0 4 7 2 What is Simple Arithmetic?

Easy calculation,.

Simple calculation idea: If we do simple calculation, we can use the distributive property of multiplication operation or the properties and laws of associative law or division operation to calculate, and get the effect of our simple calculation. If we want to simplify this question, if we want to calculate it, we can first turn it into, and then put it forward, and carry out the content in parentheses, which will be simpler.

The detailed and simple calculation process is as follows.

So, through the simple calculation process above, the answer is 4.

Extended information: Problem solving ideas: When calculating the vertical calculation multiplication operation, first multiply the first digit of one digit by another digit to get a one-step answer.

Then multiply the low to the high digit by another digit to get a few steps of the answer. Finally, add up all the answers you get to get the final answer.

Step 1: 1 4 = 4

Step 2: Based on the answer in the first step, multiply by 1 to get 4

So, you can use the multiplication operation of vertical calculation, and the answer is 4.

This question can be morphed into:

1. Thinking: Thinking is at the heart of the mathematics learning method. In this course, thinking has a lot of significance.

When solving a math problem, you must first observe, analyze, and think. Thinking can often discover the characteristics of the problem, find out the breakthrough of the problem, and the easy way to solve the problem. Around us, all the students who really learn well have the habit of thinking diligently and often using their brains, so the more their brains are used, the more agile they are, and the diligent thinking becomes good at thinking.

2. Try it out: Hands-on help to digest the knowledge learned and achieve a thorough understanding. After class, I often deduce the formulas that the teacher has taught, and do not read books when deriving, but memorize them.

In this way, you can master the formula and lay a solid foundation for the calculation of formula deformation.

3. Cultivating the spirit of creativity: The so-called creation is to come up with new methods, make new achievements, and establish new theories. Creation is not limited to the methods taught by teachers and textbooks.

Usually, there are some difficult questions, and after I understand the methods explained by the teacher, I have to find out if there is another solution, so that I can deepen my understanding of the problem, compare the pros and cons of several solutions, and make the problem-solving thinking reach a higher level.

1. Pay attention to listening and lectures in class, and review in time after class.

Accepting a new kind of knowledge is mainly carried out in the classroom, so you should pay attention to the learning efficiency in the classroom, find a learning method that suits you, and follow the teacher's ideas and think positively during class. When doing homework, first recall the content explained by the teacher in class, but also firmly grasp the formula and reasoning process, and try not to turn the book. Try to think for yourself and don't rush to look at the answers.

It is also necessary to summarize and review frequently, combine knowledge points, and turn them into your own knowledge system.

Answer: 33Analysis:

1. Multiplicative distributive property.

The most common method used in simple calculations is the multiplicative distributive property. The multiplicative distributive property refers to ax(b+c) = axb+axc, where a, b, c are arbitrary real numbers. Conversely, AXB+AXC=AX(B+C) is called the inverse of the multiplicative distributive law (also known as extracting the common divisor), especially when a and b complement each other, this method is more useful.

There are also additional associative properties, such as a+b+c, where b and c are complements, so you can combine b and c and multiply them with a. If the + in the above equation is changed to x, it can also be easily calculated by using the associative property of multiplication.

2. Multiplication associative law.

The associative law of multiplication is also a method of doing simple operations, which is expressed by letters as (a b) c = a (b c), and its definition (method) is: multiply three numbers, first multiply the first two numbers, and then multiply the third number; Or multiply the last two numbers first, and then multiply them with the first number, and the product remains the same. It can change the order of operations in multiplication operations, and the multiplication law is not used very much in daily life, mainly in some more complex operations to play a simple role.

3. Multiplication commutative law.

The multiplicative commutative property is used to invert the positions of individual numbers: a b = b a4, and the commutative property of addition.

The additive commutative property is used to swap the positions of individual numbers: a+b=b+a5, and the additive associative law.

a+b)+c=a+(b+c)

<> this question, Simin's examination of the applicator is the flexible application of the multiplicative distributive law.

The simplicity of Yunzhou rubber fiber calculation.

Then it should be to change the previous item into it, and then reduce the copy to imitate it. If this is the common factor, the common factor appears. You can mention it in front, and it is in parentheses. Then subtract again.

（53+47）

Easy Computing Knowledge Expansion].

Computation is one of the most important aspects of mathematics and an important foundation for students to learn mathematics and other subjects. Simple calculation accounts for a considerable part of the calculation of Lu Wei problems in primary school, and it is also a knowledge point that students are easy to confuse and make mistakes.

Simple calculation is mainly based on the use of the law of operation, and the law can be flexibly selected for calculation. The laws of operation mainly include the law of addition and combination, the law of addition commutation, the law of multiplication combination, the law of multiplication commutation, and the law of multiplication and distribution.

Several laws of operation can be applied in integers, as well as in decimals, fractions, and percentages, but the solution for each number is still much the same.

One of the most important things to do is to be good at observing problems after mastering several laws of arithmetic. What exactly is the subject to observe?

The first is to observe the characteristics between the symbols and the number of the early exercises. Whether the operation symbol conforms to the law, whether the number and the hail difference can be added, subtracted, multiplied, and divided to form a whole ten or a whole hundred and a thousand numbers.

The second is to observe the characteristics of the question type. What are the characteristics of the question type in the question, which law it conforms to, and choose a feasible calculation technique from it.

The third is to observe the order of operations of the problem, and use the existing laws to find the order of operations you want.

。First, the associative law of multiplication is adopted.

Multiply it with 4, and calculate other operations after Mengsun Ran fights the bridge, and the branch pin chain is obtained to the result.

The method of arguing and fighting is as follows, carrying the grind.

Please do the divination test:

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Take 50

Short: Count.

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