A random generator created
a subtractiontable
with integers.
Your task is to subtract the numbers
and complete the table.
One subtraction has already been done.
Click on the button
Check differences
to check your results.
For each right difference you get 5 points, for each wrong
or missing difference you lose 5 points.
If the problem is solved, you can click on
Create new table
to start again.
Can you top
299 points?

