Japanese Multiplication Examples
It is interesting and very easy way of multiplication where we get our answer by drawing lines only.
Japanese multiplication examples. You do not need to learn japanese but if you teach the japanese words for multiply divide add and subtract it would be a great example of cross curricular activities and smsc. Multiplication last but not least we ll use the term kakeru for multiplication. Find the product of 12 x 31. Essentially you denote the digits as groups of lines and then you count the intersections to arrive at your result.
The japanese multiplication method is really just a visual way of representing those four steps. For example to multiply 21 x 23 the student first represents 21 by 2 diagonals lines that are drawn up and to the right followed by 1 diagonal line that is. Japanese method is one of the easiest method of multiplication where we draw lines instead of numbers for multiplication we get result without doing calculation. First pick a multiplication problem.
When we say 3 times 2 that is the same as saying 3 groups of 2 and we can show these three groups as 3 rows and 2 columns or 3 columns and two rows. As a teacher you can then move into how japanese pupils learn to multiply and follow one of the examples below. Here s the gist of how the japanese multiplication method works. In order to understand how japanese multiplication works we must start back at the good old reliable method of organizing equal groups in rows and columns.
4 x 5 20 yon kakeru go wa nijyu よんかけるごは二十 四掛ける五は虹湯. Here are three multiplication examples for you to practice. 9 x 9 81 kyu kakeru kyu wa hachijyu ici. Japanese multiplication derives way to multiply things visually using the lines.
You re right i m talking about an array. This method is applicable for 2 digits 3 digits more digits also. Here s how the trick works. So in this case the 12 is represented by a group of 1 line and a group of 2 lines and the 31 is.
While the user jesslouisec calls the method japanese multiplication and some mathematicians say it s vedic. Let s try a simple example. This multiplication works better for all the two digit multiples and multiplicand. In the japanese multiplication method a student is able to complete a multiplication problem of two large numbers by merely drawing a few lines and counting the points of intersections.
Let us see with an example 12 x 31 372 visual explanation using lines draw the equivalent lines for the digits. Five examples of the japanese multiplication method.