The library contains free randomised exercises, which are hierarchically arranged in folders.
The search bar at the top of the page can be used to search for specific keywords in an exercise title. The search applies to the current folder and below.
Exercises have attributes that identify properties of the exercise, such as the presence of fractions or brackets. Attributes also have an associated difficulty, indicated by color (see the above screenshot).
The exercises are ordered by their level of difficulty, based on the attributes. So the easiest exercises are on the top and the most difficult ones are at the bottom of the list.
You can preview an exercise by clicking the exercise name.
This preview window shows five random instances of the exercise. Click the play button to preview the worked solution or to solve this specific instance.
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