You can practice on a normal Scientific Maths calculator. Unfortunately in South Africa you are not allowed to take your own calculator into the exam room.
You will however have access to a Maths calculator on the computer for the parts of the exam you are allowed to have one.
Everything will be online but you will have scrap paper to work out sums.
See this link to understand what happens with the online Maths calculator.
For more information on exams please contact Pass GED Academy.