What is the 99 multiplication table memorization formula? 99 multiplication formula table memorizati

Don't do it for a while will be in this way method.

Here's how to memorize a multiplication formula table:

1. Understand mnemonics. Comprehensible memory does not need to have a certain reference, that is, the formulas that you are more familiar with, such as: seventy-seven forty-nine, eighty-eighty-sixty-four, ninety-nine eighty-one, etc., according to which you can easily find a way to calculate.

2. Contrastive mnemonics. Comparison is the observation and comparison of multiple numbers.

3. Story memory method. Stories are very popular with the elves of the story family, and some formulas are more special, and they can use the form of stories to help them learn to memorize.

4. Finger memory method. Stretch out ten fingers with the palms facing you, counting from the left, in the order of 1-10. If you want to know the product of several nines, just bend the first few fingers and see how many fingers on its left are tens, and how many fingers on the right are several ones, and the sum is the required product.

The skills of reciting multiplication formulas are: vertical back, horizontal back, and bent back.

1. Vertical back: For example, one by one gets one, one two gets two, and it is carried until it is nineteen, then it is four for two and two, and six for two and three, and it is prepared until it is twenty-ninety-eight, and then it is three and three for nine, and three for twenty-two, until it is thirty-nine and twenty-seven. There is a rule in this method, the number of vertical columns, the number of gradually increase a few, which can help memory according to this rule.

2. Horizontal back: For example, the first horizontal line, imitation inspection is one by one; the second is two sentences, one two gets two, two two gets four; And so on, the first few lines are a few sentences, and the last nine sentences go from nineteen to ninety-nine eighty-one. There is also a rule in this method, the first few lines, the next sentence is a few more than the previous sentence.

3. Bend the back: For example, first back one or two get two, then back two two get four, then turn down the back two or three.

Six, two, four.

8. All the way up to 298; And then back to one or three.

Three, two, three.

Sixth, three three get nine, and then turn down three four and one twelve, until three nine twenty-seven. One of the characteristics of this kind of memorization is that there are nine sentences in the formulas from one to nine, and the number of formulas gradually increases.

The correct way to recite the ninety-nine multiplication formula table is as follows:

Tip 1: Dimensionality reduction, there is a big improvement in quantity.

Use excel to make a new **, remove the two oblique symmetrical parts of the Mu Min Brigade, so the total number will be less than half, and there are only 45 formulas that need to be memorized.

Tip 2: Elimination method, skip the easy part quickly.

The following light green parts are like playing for children, and they are easy to understand by simply speaking, so the number can be 9 less, and the mantra that needs to be memorized is 45-9=36.

Tip 3: Limit the product of your data to 20.

In order to focus more,I directly removed the mantra of the 1 sequence,The light green part below can be taken to the child to memorize the shirt to recite,Why choose so,One of the important reasons is that for children,At present, there is only a certain feeling for the number within 20,So the product range is as much as possible within 20 Xun stool,At the same time, it is still more difficult to process the data of 6 9 for adults,So you can put it for the time being。

This recitation sequence begins with the sequence of the number 2, starting with 2x2 and going all the way up to 2x9, and then begins with the 6 mantras in the horizontal section.

Tip 4: Develop a sense of data and delineate the scope.

Next is the dark part, which allows the child to memorize the numbers of 2x2 9x9 intensively, and there are some small tricks at this stage, such as 8x8=64, just say "Daddy is 64 years old", and the child will remember it quickly.

Tip 5: Reciting the mantra of the 9 sequences can be tricky.

According to the horizontal 9 sequence, starting from 3x9 to 8x9, there are some detours in this process, which was originally recited with the child, but the child read it many times, remembered the front and forgot the back, and the effect was average.

There is a little trick for the formula of 9, such as 3x9, its result is one place smaller than the ten digits of 3, you can not hesitate to shout out "twenty" first, and then your number is to make up ten methods to solve, that is, 10-3 = 7, that is, the single digit is 7, so the answer is "three nine twenty-seven", similar patterns for the later larger numbers children can also quickly master.

Tip 6: Split, gradually expand the scope of the data.

In the end, there are 12 left, which can be broken through one by one, such as learning the yellow part first, this part of the data is in the range of the early 20s, and for 5x6, 5x7, 5x8 can make children have a certain understanding of 5 increments.

Tip 7: Mantra cards, numbers and kanji mantras echo.

Find a mantra card with the product of numbers on the front and the Chinese character mantra on the back.