★ About "a calculation on a piece of paper teacher"
This application is application to display multiplication and calculation on a piece of paper of the division.
It is convenient to check where of the calculation on a piece of paper is wrong.
In addition, I use it to solve a problem for exercises and have you use it so that a taught teacher makes a problem.
★ Main function
It is effective for the calculation that there is not with an electronic calculator because I can appoint it to the number of the big figures.
I come to be able to adjust it to the extended size that I am easy to watch because I can reduce with pinch in / pinch out.
● Multiplication
I can appoint a multiplier, a multiplicand to 23 columns together. I can appoint the way that the right chopsticks add 0 to at the time of 0 later.
● Division
I can appoint a divisor, a dividend to 23 columns together. When 0 rises in the quotient, I can appoint both the next number and the way to take down.