Domino Trick


1. Think of a domino and count the number of pips on the left side of that domino.

2. Multiply this number by 5.

3. Add 7.

4. Multiply by 2.

5. Add the number of pips on the right side of the domino.

Enter your answer:



Click here to run again

Click here to see why it works

Many thanks to Jaime Garcia Ramirez for helping me with the javascript!


Send any comments or questions to: David Pleacher