Questions & Answers about Die aantal is hoog.
Both can relate to number, but they are not used in exactly the same way.
- aantal = the number/quantity of things or people
- getal = a number in a more abstract or mathematical sense
So if you are talking about how many students, books, or cases there are, aantal is usually the natural word. If you are talking about the number 7, odd numbers, or a numerical figure itself, getal is more likely.