Entry screen.
Tables selection & printing

Calculator window
This is the workbench

Main window
"Mental" mode with timer

Background dialog
Color selection

Sound dialog
Sound sequence selection

Edit sound sequence
Choosing sounds from hard disk

"Expert" Options dialog
Preparing for hard work...

Print drill sheets dialog
Preview and Print hard copies

Printable drill sheet
Generated dynamically

Double entry multiplication grid
Printable sheet

All tables, no answers
Work printable sheet

All tables with answers
Reference printable sheet