Yes, it can be
Verify master is used to cross verify the results of the given arithmetic operations. The Beads would be moved automatically to its place values considering the centre point or the nineth rod as the unit point.
Given the numbers and the operator and once the equal(=) sign is pressed the beads will automatically move to its positions accordingly.
Bead practice is for practicing the bead movement exercise starting from 1 digit to 4 digits. The "Enter digit" box will let you enter the number of digits for your practice. Each time when the "start" button is clicked it generaes random numbers for practicing the bead movement and once the bead are moved as per the question and "submit" button is clicked the "Ans" column box will show the value moved. If it matches the "Quo" i.e if the beads are moved correctly then the small black color box on the right side will highlight in "Green", if beads are placed wrongly then it highlights in "Red". This can be practiced infinite number of times with no frequent repeating questions.
This is similar to bead practice, it will generate the series of numbers for practicing addition starting from 1 digit to the length of 4 digits. The user can move the abacus beads on the screen as per the question popped up and once the submit is clicked the "Bead Value" box will display the number value as per the beads moved on the screen and the "Quo Value" box will sum up the numbers provided and throw the actual result. This way we can compare the results.
This is almost similar to the "Add practice" except that it involves both the addition and subtraction involved in it.
This is similar to "Add practice" for practicing the multiplication
This is similar to "Add practice" for practicing the division, the "QUO VALUE" has two boxes the first box holds the "Quotient" and the second one hold the "Reminder". Similarly the "Bead Value" box will display the "Quotient" and "Reminder" value as per the beads moved on the screen. The first 9 rods holds the Quotient value and rest is for the reminder.
Yes, the values can be modified in the quo box as needed.