The calculator is a simple calculator of only four arithmetic operations .
Transformed into a abacus if the terminal next to .
Since the number at the bottom is displayed in accordance with the position of the ball it can also be used in the practice of the abacus .
If you want to use as a calculator , you will see the calculation results at the top of the abacus .
Because even in the display when the calculated result is negative supports ,
The answer alignment of Mitorizan so you can determine the position of the ball is recommended to practice for beginners .
Transformed into a abacus if the terminal next to .
Since the number at the bottom is displayed in accordance with the position of the ball it can also be used in the practice of the abacus .
If you want to use as a calculator , you will see the calculation results at the top of the abacus .
Because even in the display when the calculated result is negative supports ,
The answer alignment of Mitorizan so you can determine the position of the ball is recommended to practice for beginners .
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