Read all the instructions carefully. After that you can start with the test. To read all instructions, click through the four different chapters on the right.

Basic mathematical skills are tested in this task using numerical flow charts. You will see incomplete flow charts and you simply have to complete them.

The squares have a different relationship to one another: the direction of the relationship is indicated by arrows; the mathematical operation that defines the relationship between the squares will be shown in a circle. Your job is to insert the numbers below into the empty squares so that all relationships are correct. 

The solution would be … 

The task is processed by using "drag and drop": move the mouse pointer over a number, hold down the left mouse button, drag the number to the desired position and release the mouse button. To remove a number from an assigned position, drag it back out of the assigned field.

Furthermore, the following rule applies: All numbers must be used at least once, but can (or must) be used several times in some cases.

You can see more instructions on the next page.