How to multiply by a column? How to explain to a child the multiplication by a column? Multiplication by a single-valued number, a two-digit number, a three-digit number

The child is just taught to multiply by a column, if you do it in a game form.

• Mathematics is a complex science for almost every child. Parents have to force their children to do their homework, because it is necessary not only to get good grades in school, but also for the development of
• . Intensive brain work helps to develop memory, intelligence, attention and acquire excellent numeracy skills.
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• All the qualities acquired at school will beuseful in a future life. You need to be able to count not only scientists, but also workers and housewives. One of the most difficult actions is multiplication. It is not immediately given to every child.

Important: An elementary school student sometimes needs a few lessons to understand this action. But, after all, teachers require for a few days after submitting material, learn the multiplication table.

How to explain to a child the multiplication by a column?

How to explain a child by multiplication by a column?

Teaching a child to multiply is a real task, but you will have to be patient. Lesson should be regular, because only the system will help achieve the desired results.

Important: If the child is still young( 5, 6, 7 years old), you need to prepare visual aids in the form of coins, pictures or cards for the account. Make classes in a game form. They should last no more than 20 minutes.

• Tell the child that multiplication is repetition, adding the same numbers
• Write on the sheet of paper examples: 2 + 2 + 2 + 2 + 2 and 2x5
• Make a comparison with the child as to how to add or multiply the
• . To consolidate this information, give examples from life, but they should not be invented. For example, the child is visited by 7 friends. For them, a delicacy is prepared - 2 candies each. How to calculate faster by adding or multiplying? Count together with the kid and write down on paper as an example: 7x2 = 14

Tip: Immediately explain to the child that 3х5 = 5х3.Due to this you will reduce the amount of information that he will have to learn.

When several lessons are completed, the multiplication table will be learned, then you can begin to explain to the child the multiplication by a column of two-digit and three-digit numbers.

Multiplication by a single number

Multiplication by a single number

Children already in the third class begin to multiply into a column by two-digit and three-digit numbers. But first we need to explain multiplication by a single-valued number, for example, 76x3:

• First we multiply 3 by 6, we get 18 - 1 ten and eight units, write 8 units, and 1 store. The unit we will then add to the tens of
• Now multiply 3 by 7, we get 21 tens + unit, which was memorized, we got 22 dozen
• We use the multiplication rule in the column: the last digit is left, and below we write tens, we get 228

The multiplication rule in the column:Immediately tell the child that when multiplying in a column, you need to write down the numbers accurately, because the result depends on it. Units of units are written under units, and tens are written under tens.

Multiplication by a two-digit number

Multiplication by a two-digit number

Two-, three-, four-digit numbers can be multiplied by single-valued in the mind. When the child becomes a little older, he will do so. But multiplying by a two-digit number in the mind is still difficult. Therefore, the action is applied again in the column.

Example : We make multiplication by a two-digit number - 45x75:

• Under the number 45 we write 75 according to the rule: units under units, dozens under tens of
• Multiply we start to do from units: 25 - 5 write, 2 remember, then add to tenss
• Multiply5 on 4, it turns out 20. Add to tens of 2, it turns out 22. We write ahead of figure 5, it turns out 225
• 7х5 = 35.Digit 5 ​​is written under tens, 3 is memorized and we will write it down then in hundreds
• 7x4 = 28 hundred. Add 3, it turns out 31 hundred. We write down the rule of multiplication in the column
• Add the partial products - units, tens and hundreds and get the result: 45х75 = 3375

Multiplication by a three-digit number

Multiplication by a three-digit number

There are people who multiply three-digit numbers in the mind. It is naturally difficult for a child to do this, so he must hone his skills on paper.

Multiplication by a three-digit number is performed in the same way as multiplication by a two-digit number:

• First, the units are multiplied and written to the string
• The tens of multiplication rules in the
• column will be written below. The third line is the product of hundreds
• . As a result, thousands, hundreds,dozens and units to be added

How to multiply two-digit numbers in a column?

How to Multiply Two-Digit Numbers

Important: If you want to multiply a two-digit number by a three- or four-digit number, then the record in the column is executed so that the largest number is at the top and the smallest at the bottom. Thanks to this action, less records will have to be made, and it will be easier to multiply.

How to multiply two-digit numbers with a column, we discussed above, and how to multiply a large number by a two-digit number should be disassembled in more detail:

Example : 4325x23

• First multiply 3 by 5, 2, 3 and 4. Record units, tens, hundreds and thousands
• Now we multiply 2 by 5, by 2, by 3 and by 4. We also write, but tens already under tens, hundreds under hundreds, and thousands under thousands
• We add by rule and get the result: 4325х23 = 99475

Algorithm for multiplying numbers

Algorithmmultiplying the numbers

Important: To make the child learn xIt is necessary to multiply complex numbers, it is necessary to deal with it a lot. These classes should be short, but systematic.

The algorithm for multiplying numbers consists in applying the multiplication table. Therefore, the child must first thoroughly learn the multiplication table, and then learn to perform the action with complex numbers.

Important: The multiplication table should be known well in order not to waste time searching for the desired result when multiplying complex numbers.

Multiplication Games

Multiplication Games

Important: To quickly learn the multiplication table, you can train by multiplying by a column. So it turns out to consolidate knowledge, and to train memory.

Games for multiplication:

It will be easier for a child to remember the multiplication table in a poetic form, and an entertaining character will help him in this.

Video: Multiplication table in verses for children Training for math

Multiplying in the form of a training video and an interesting song will help the child easily remember the algorithm of this action.

Video: Multiplication table for kids cartoon and song

Visual, fun and fast teach multiplication. A provocative musical accompaniment helps in study.

Video: A descriptive table of multiplication. A video clip is counted.

Visual video-manual for classes in mathematics. Multiplying with your favorite characters is fun and interesting!

Video: Multiplication table

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