Procentrekenen

10 % van 50 is ____________________
30 % van 60 is ____________________
1 % van 200 is ____________________
50 % van 150 is ____________________
2 % van 100 is ____________________
15 % van 80 is ____________________
5 % van 20 is ____________________
20 % van 75 is ____________________
70 % van 80 is ____________________
100 % van 16 is ____________________