Cool-Doo Math

How many computer-generated problems can you answer in 2 minutes?

1. Choose an operation:	2. Choose numbers from 0 to 1000:
Add Subtract Multiply Divide Random operator	Choose highest number: 5 10 15 20 30 40 50 100 200 300 1000 30
3. When you're ready, click . To stop, click . 4. Enter the answer and click "Check Answer":

=

seconds remaining answered correctly answered incorrectly