Two Quick Tests

This won't take very long!

The idea is to determine whether or not two quick tests of mental arithmetic are roughly at the same level of difficulty.

• Each has ten questions.
• Please answer the questions as fast as you can while at the same time trying to avoid making mistakes (since mistakes will slow you down).
• All answers are numerical.
• Each answer should be typed into the text box associated with each question.
• If you enter an incorrect answer, then you'll see an error message.

Before you start the first test for real, please complete the practice questions below. Doing so will give you an idea of how the interface works. You may want to get a question deliberately wrong (just so you can see what will happen).

1. Subtract 4 from 9, then add 6. Ans:   

2. Add 7 to 11, then divide by 6. Ans:   

3. Add 6, 9 and 13 together. Ans:   

4. Divide 10 by 2, then add the sum of 3 and 2. Ans:   

5. Multiply 3 by 6, then subtract 3. Ans:   

Once you have completed the set of ten questions, you should hit the "Complete!" button, which you'll see at the bottom of each test page.

That's it really.

Click this button when you're ready to start. And remember, the timer will start immediately!