Hello to the whole steemit community, today I come to present you how to do the subtraction in the abacus so that they can learn and they can save this material someday be very useful for you. My thinking is to share information that is very important for those who can help children with visual or blind disabilities, with nothing more to add.
REST OF THE ABACUS
To start the process of subtraction in the Japanese abacus, write the minuend in the
first class for example: nine and subtracting five in the seventh class, now, subtract nine minus five equal to four that is written in the first class units, once the five written in the units has been deleted (9 -5 = 4). Perform the following exercises:
Photo of the book
Bibliography:
ABACUS CARTRIDGE
First part
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