The ArithmAttack

How many computer-generated arithmetic problems can you answer in 60 seconds?

1. Choose an operation: 2. Choose numbers from 0 to 12:
Choose high number:

Choose low number:

3. When you're ready, click . To stop, click .

4. Enter the answer and click "Check Answer":

=

seconds remaining
answered correctly
answered incorrectly

 

This program is used with permission and was created as a gift to the children and math students of the world by David Baurac from the U.S. Department of Energy's Argonne National Laboratory.