practice
In German, the word "Übung" is used to describe the act of practicing or training. It can refer to a specific exercise or drill, or it can refer to the overall process of improving one's skills through repetition and practice. For example, one might say "I need more Übung to improve my piano playing skills," meaning that they need more practice to get better at playing the piano.
Practice makes perfect.
This is a common saying in German just like in English. It means that the more you practice, the better you will become at something.
We need more practice in math.
This sentence is used when someone thinks they need to improve their skill, in this case in math, by doing more practice.
This exercise is difficult.
This sentence is used when finding an exercise difficult to carry out or understand.