Practise accurate IDs, amounts, times and signs using order, stock and settlement exercises.
Review incorrect fields, practise them, then try a new set with different values. Pasting and manual typing are not equivalent practice.
Sets and summaries stay on this device. Save and reopen a report to inspect errors. Results are not a certification of workplace ability or learning gains.
Interactive processing requires JavaScript. Keep the original and reopen the saved output to check it.