Techniques for reciting multiplication formulas include: memorizing them vertically, horizontally, and turning around.
1. Memorize it vertically: For example, one to one is one, one two is two, and so on until one nine is nine, then two two is four, two three is six, and so on until two ninety. Eight, then three-three-nine, three-forty-two, all the way to three-nine-twenty-seven. There is a rule in this method. If the numbers are listed vertically, the numbers will gradually increase. This rule can help memory.
2. Memorize it horizontally: For example, if the first horizontal line is one sentence, one will get one; the second horizontal line is two sentences, one two will be two, two two will be four; and so on, the next row will be several sentences. , the last nine sentences, from one nine to nine to nine nine eighty-one. There is also a rule for this method. The next sentence will be increased by a certain number compared to the previous sentence.
3. Turn around and memorize: For example, first memorize one or two to get two, then then memorize two or two to get four, then turn around and memorize two or three to get six, two or four to get eight, until two or nine. Eighteen; then go back to one three to get three, two to three to get six, three to three to get nine, then turn down and go down to three, four, twelve, all the way to three, nine, twenty-seven. One feature of this memorization is that the formulas from one to nine have nine sentences, and the formulas for several numbers gradually increase in number.