Advice 1: How to multiply in a column

The multiplication in column one of the first and the most important operations, which studies the young learner in school. Without a clear knowledge and understanding of the whole sequence of actions when multiplying two numbers it is impossible to acquire further knowledge of mathematics. To fully learn how to multiply in a column can only be a multiple repetition of this operation. Performing the computation in a column, the student trains memory and attention. This allows further easier to concentrate on any task. To multiply numbers in a column need after studying the multiplication tables.
How to multiply in a column
You will need
  • A piece of paper in the box, handle
Instruction
1
Write down on a piece of two numbers to multiply. The second number is place under the first so that the last digits of the numbers were exactly under each other. Swipe underneath the line. All calculations only write below the line.
How to multiply in a column
2
Take the rightmost digit of the second number and multiply it on the right-most digit of the first number. If you get a two-digit number exactly under multiply numbers write its last digit. Next to a column on a piece of paper, mark the remainder of the first number, or remember it in mind.
How to multiply in a column
3
Again multiply the rightmost digit of the second number is the next digit of the first number to the left. The result of the multiplication, add the previously stored digit from the previous works. If we multiply the digit of the first number was the last record the result completely. If the first number still has digits left, also split the result and make a note under the multiply digits the last digit, and the first remember.
How to multiply in a column
4
Similarly, multiply the remaining numbers of the first number by the rightmost digit of the second. Next, take the next digit of the second number to the left. And, as an extreme figure, multiply it on the line for all the digits of the first number. The results start to burn just under the figure multiplied by the second number and at a lower level than in the previous step.
How to multiply in a column
5
Multiply all the digits of the second number, as described on figures first. In the end, the number of rows of digital recordings should be equal to the number of digits of the second number.
How to multiply in a column
6
Fold the received digital ranks. To do this, add zeros in the empty places in the ranks, in order to make the addition. Draw the line under all the rows. Start adding from the rightmost digit ranks. Fold of numbers are exactly above each other. Upon receipt in the amount of two-digit numbers as well write it down the last digit and keep the highest figure to add to the subsequent amount.
How to multiply in a column
7
After addition of the last, right-most digits of the result record full. And the MSB of the amounts, if any, should be placed to the left of all digits of a number. The number below the last line and is the product of the set of numbers obtained by multiplying in columns.

Advice 2 : How to multiply large numbers

The ability to multiply large numbers required daily. Sometimes you have to consider the cost of several items in the store. Sometimes the child asks for help with homework. There are several ways to find the product of two large numbers without using a calculator. Consider the example of multiplication of 42 and 21.
How to multiply large numbers
You will need
  • - a sheet of paper;
  • - handle.
Instruction
1
One of the easiest ways to find the product of two numbers is to multiply them in a column. This is taught in elementary school, but if you have forgotten how to do it, is to refresh their knowledge.Write the two numbers one below the other and slide the bottom horizontal line. Perform multiplication of the first number to the second unit and record the result. Multiply the first number by the tens of the second (the result of multiplying the in this case, you should write a little shifting it to the left). Do another horizontal line and calculate the sum of the numbers obtained. This will be the product of 42 and 21. Similarly, you can multiply and three-digit and five-digit numbers.
2
If you do not have a sheet of paper, you can multiply numbers in mind. For this you need to submit one of the multipliers in the form of tens and ones. Thus, 42х21=42х(20+1). Multiplying the round number is done by multiplying the first multiplier by 10, followed by multiplying the resulting works are in the tens of the second multiplier. To multiply by 10, not necessarily to perform complex mathematical calculations, it is sufficient to ascribe to the right by the number zero. So when you multiply 42 20 42 you need to first multiply by 10 and then doubling the resulting product. 42х20=42х10х2=420х2=840. This number should be kept in memory.The second stage of multiplication in mind is to multiply the first number on the second unit, in this case 42х1=42.Then need to add the numberresulting from the first and second actions. Their sum will be the product of 42 and 21. 840+42=882Данный method to multiply two-digit numbers. Someone can find the three-digit product. Numbers with a large number of bits to be multiplied is unlikely to succeed.
3
There is another unusual way of multiplying numbers. Draw on a sheet of paper a graphic diagram of the first multiplier. Imagine it in the form of parallel horizontal lines indicating the number of tens and ones. Between the first and second discharge shows a schematic representation of the number Express the distance of five inches.In the same way, draw a graphical diagram of a second multiplier, only the parallel lines must be vertical and cross the line first number.Now count the number of points at which intersect the line. The number of points in the upper left intersection will indicate the number of hundreds. Points in the lower right crossing - the number of units. The sum of the points located on the diagonal (lower-left and upper-right intersection), the number of tens. Write down the result, this is the product of 42 and 21.This way you can multiply any multi-digit number. Only need to pay more attention to the counting of intersection points in different diagonals.
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Advice 3 : How to learn table division

Section "Multiplication and division" – one of the most challenging mathematics course of primary school. Her children are studying, usually at the age of 8-9 years. At this time they have enough well-developed mechanical memory, so memorization happens quickly and effortlessly.
How to learn table division
Instruction
1
Remember that some children have difficulty learning tables division. Try to do your best to help your child cope with them.
2
Avoid "cramming". To the child it was easier and more interesting to perform a task, do it with him in a playful way. For this perfect candy, buttons or coins. With their help, your child will not only learn division, but also develop fine motor skills in the course of action with small objects.
3
Try to explore a table of the division with a baby at the end. Thus, there is more quality learning division 9, 8, 7 and 6. When you go down to the middle of the table, teach has almost nothing to have, and the most difficult will be passed. Often don't forget to praise your child and something to be encouraged.
4
Make cardboard cards with questions from table division. Alternately get out of sync from the deck one card at a time and ask child to give you an answer. Practice each day, this will help to develop the child's visual memory. With time he will learn very quickly to give the right response to every action.
5
Spend for a child's small check. Get a special notebook in which you write for him the job. Every day write in it examples from each column of the table division, but no answer. The child must carry out the decision and write the correct answer. This game he will love and he will love to perform all actions.
6
While walking give various examples of usage of the multiplication table in my life. Ask the child also have cited examples, it will help him develop thinking.
7
There are special programs – simulators that will help the child to learn table division. On the wall in his room hang a poster with a table dividingthat at any moment he could turn to him for help.

Advice 4 : As 1 day to learn the multiplication table

Table multiplication is a easy to remember number crunching. The study of it necessarily includes in the curriculum of school children. You must help the child to memorize the multiplication table.
As 1 day to learn the multiplication table
Instruction
1
Place all the numbers in the columns in order, starting with one and ending with ten. It is best to do three or five columns in a single row, the child is better focused and not get tangled up in the numbers. Each column to make ten lines, each of which will be one action of multiplication: one, two, three and so on up to multiplying the number by ten.
2
Allow the child to read the first column. When multiplying by a unit number is not changing, so he will remember it very quickly. In addition, the child will get acquainted with the multiplication table, and will not be afraid that it will be too complicated.
3
Continue with the second column and beloved children of the action "twice two = four." When multiplying deuce to get a small number with whom the child is most likely familiar by the decision of school problems. Fasten studied by asking the student some examples in a chaotic manner.
4
Proceed studying subsequent columns of the table. Take your time and dedicate more time to each of them that the information was delayed in the head. Pay attention to his examples, which is easiest to remember due to their folding sound, for example, "five five – twenty five", "six-six thirty-six".
5
Visualize examples. For example, you can paint the figures of eyes, hands and feet so they will better remember the child visually, but the numbers must remain visible. You can also select the columns and lines in different colors, put them in frames, etc.
6
Hang the poster with the multiplication table in the baby's room and buy him notebooks with printed on the table. The constant presence of information will contribute to a more rapid memorization. There are also special computer programs and spreadsheets with sound effects that will help to remember the examples at the hearing.
Useful advice
That the child has not forgotten the multiplication table the next day, keep training and ask him questions, asking various examples.
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