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2nd Grade Memorization Multiplication Formulas:First of all, we want to tell the children that the multiplication formula table is also called the "ninety-nine multiplication formula table", as the name suggests, this table consists of nine rows and nine columns. Moreover, the whole formula table is like a staircase shape, so that children can discover and remember this feature, it is easy for children to memorize the structure of the entire table in their minds and deepen their image memory.
Second, tell your child that when reciting the multiplication formula, you should recite it line by line, and that the first word at the beginning of each line must start with "one", for a total of nine lines, and each line begins with "one". In this way, the child will not be confused when reciting.
Third, it should also be noted that the first formula of each column is related to the row in which it is located. What I just said is that the first word in each column starts with "one", so what about the second word? We find that the second word is the number of lines it is in, just look at the position of the box in the picture. Pass.
The two characteristics of two and three can easily remember the first formula in each line.
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SophomoreMultiplication formulasAs follows:
Quickly memorize multiplication formulas.
First understand the meaning of the multiplication formula, discover the rules of the multiplication table, and then guide it.
I memorized 2 2 numbers and 5 5 numbers, so I can use this foreshadowing.
Memorize the multiplication formulas of 2 and 5 first, and then take the same approach for the rest.
After memorizing, you can take a variety of forms such as horizontal back, vertical back, and bent back when practicing.
Play games such as "matching passwords" and "finding friends" to increase interest and strengthen mantra proficiency and speed.
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Ninety-nine multiplication formulas:
The "little ninety-nine" mantra that primary school students learn starts from "one by one gets one" and ends with "ninety-nine eighty-one", but in ancient times, it was reversed, starting from "ninety-nine-eighty-one" and ending with "two-two-two-four". Because the first two words of the formula are "ninety-nine", people refer to it as "little ninety-nine". It wasn't until about the turn of the century that it was reversed like this, "one by one......Ninety-nine-eighty-one".
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Here's how to memorize the second grade multiplication formula:One relies on understanding the method of mnemonics.
The second is the contrastive memory method, which observes and compares more numbers.
The third is the story memory method, stories are very popular for students, and some formulas are more special, and they can use the form of stories to help them learn to remember.
The fourth is finger memory.
Notes on the recitation of multiplication formulas in the second gradeParents can use all available time to conduct random tests on their children anytime and anywhere in the form of games. And let the children say two multiplication formulas and two division formulas according to a multiplication formula, which has achieved the purpose of learning and applying.
Scrambling the order memorization not only allows children to quickly memorize the multiplication formula.
It can also allow children to blurt out the matching multiplication formulas when they see the equation when they are doing problems, so as to improve the efficiency of children's problem-solving.
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When we were studying, this kind of problem must be done: 3x5=15, because Xiaohong is 5 times as much as me, that is, there are 5 3s, according to the meaning of multiplication, we must use 3x5=15, that is, the number should be placed behind. Now we are using a new textbook that focuses on students' problem-solving skills and is no longer limited to these word games, so whether it is 3x5 = 15 or 5x3 = 15, it is correct.