Maths trainer: Column addition and subtraction (Arithmetic7).
Description: Generation of primary school maths exercises concerning column addition and subtraction. The program gives pupils the
possibility to resolve these exercises just as they would do with a pencil and a sheet of paper, properly lining up the operands, writing down the carry for
additions and the column values after borrowing for subtraction. The program includes lots of options such as the maximum value of the numbers used, the
number of operands (for addition) and usage of integer or decimal operands.
Free Pascal features: 1- and 2-dimensional arrays (classical Pascal). Hiding controls that are not used. Changing the position and
size of controls during run-time. Applying font-styles.