How can I improve my quick calculation ability? How to increase the speed of calculations

1. Cultivate interest in computing, participate in competitions in a timely manner, mobilize the initiative of learning, and improve the interest in computing, so as to achieve the purpose of improving the speed of computing;

2. Correct learning attitude and cultivate a serious and responsible learning spirit;

3. To cultivate the habit of calculation, the first thing is to cultivate the habit of reviewing questions. Second, develop the habit of writing and drafting carefully. Thirdly, cultivate the habit of carefully checking and checking the calculation;

4. Strengthen comparative training, form computing skills, and make use of the best time in the classroom to clarify computational thinking through the analysis of typical error cases for common errors or easily confused calculation problems. For calculation questions that are easy to calculate errors, we should establish a file card for wrong questions, take the form of question groups, and carry out repeated training to improve the accuracy and speed of calculation.

1.A dozen times a dozen:

Formula: head by head, tail by tail, tail by tail.

Example: 12 14=?

Solution: 1 1=1

Note: Multiply the single digits, and use 0 to occupy the place if the two digits are not enough.

2.The heads are the same, the tails are complementary (the sum of the tails is equal to 10):

Formula: After adding 1 to a head, the head is multiplied by the head, and the tail is multiplied by the tail.

Example: 23 27=?

Solution: 2 1 3

Note: Multiply the single digits, and use 0 to occupy the place if the two digits are not enough.

3.The first multiplier is complementary, and the other multiplier number is the same:

Formula: After adding 1 to a head, the head is multiplied by the head, and the tail is multiplied by the tail.

Example: 37 44=?

Solution: 3+1=4

Note: Multiply the single digits, and use 0 to occupy the place if the two digits are not enough.

4.Tens of one by dozens of one:

Formula: head by head, head by head, tail by tail.

Example: 21 41=?

Solution: 2 4=8

Multiply by any number: formula: the end does not move down, and the sum of the middle pulls down.

Example: 11 23125=?

Solution: 2+3=5

2 and 5 are at the beginning and end respectively.

Note: and full ten to one.

6.A dozen times any number:

Example: 13 326=?

Solution: 13 digits are 3

Note: and full ten to one.

Understanding this will give you a huge boost in your computing power.

One look, two thoughts, three calculations. in order to improve the ability to calculate.

Mathematics, as a foundational course, is one of the compulsory courses for every student. I believe that if students want to learn mathematics well, they must first learn to calculate well, and calculation is the foundation of mathematics, and the level of computing ability directly affects the ability to learn mathematics. I think students can improve their numeracy skills in the following ways:

1. Fully understand the importance of computing.

With the development of science and technology, calculators, computers and other advanced computing tools have become increasingly popular in people's lives, which has seriously affected people's understanding of oral arithmetic and written arithmetic. It is precisely because of the influence of this erroneous thinking that many students have insufficient understanding of the importance of computing and rely too much on calculators, and calculators are not allowed to be used in the college entrance examination, so many students lose many points in the college entrance examination.

Second, it is necessary to implement the foundation.

If you want to improve your computing power, it will not happen overnight, as the saying goes, "three feet of ice is not a day's cold". To improve computing power, you must start small, just like building a tall building, you must start from the ground. To learn to calculate, you must be down-to-earth and lay a good foundation step by step in order to learn well, otherwise, once you drop gear, especially if you drop too much, it will be difficult to make up for it.

Third, it is necessary to fully strengthen the training of oral arithmetic ability.

Students' calculations, in general, begin with oral arithmetic. The so-called oral arithmetic is essentially mental arithmetic. It is very important to train one's oral arithmetic ability, not to rely too much on written arithmetic, and to always deliberately cultivate one's oral arithmetic ability.

Otherwise, spending too much energy on calculations in problem solving will inevitably affect the coherence of thinking. Strong oral arithmetic skills will be very helpful in solving problems.

Fourth, it is necessary to develop good calculation habits.

Developing good computing habits is a practical and effective way to improve computing ability. If you want to improve your computing skills, you must develop the following good computing habits:

1. The habit of careful calculation of "one look, two thoughts, and three calculations". Calculation is a very serious thing, and we can't be sloppy, but we just haven't developed such a good habit, and when we get a calculation problem, we don't see the numbers clearly, we don't figure out the order of operations, and we forget it, so can we not make mistakes?

2. Good at the habit of drafting. It is a common phenomenon that students do not like to make drafts when calculating. The teacher assigns homework, some oral arithmetic, some write one or two vertical forms on the book, desk or other places, which is considered to be a draft, and some simply wait and see, waiting for the results of others, these are all bad calculation habits.

3. The habit of careful inspection. After the preliminary calculation of a question is completed, the calculation is not completely completed, and students will inevitably make mistakes of one kind or another in their calculations, which requires students to check carefully. For example, if you read the numbers wrongly, if the order of operation is wrong, if you write wrongly, etc., you can also check and calculate to see if the result is correct.

Do the questions to envy and change your mind to write, answer the questions and standardize some brothers and calculation ability needs to be slowly improved, if you really have a heart, guard against arrogance and rashness, you can always improve, there is no absolute way!! Jujube!!

o( o is similar to what I have, and I am also like this......Actually, I didn't hit the good reed or anything, and then I still calculated at this rate, and then did more questions, and there was extra time to check the slow selling with slow socks and jujube fields!!