1. Click 2. Decide who will be the Number Master and who will be the Monster Mover ( or your names). 3. One partner is the Number Master and thinks of a number (keep it a secret!) 4. The other partner is the Monster Mover. Guess a number. 5. The Number Master will say whether it is more than or less than the number guessed. 6. The Monster Mover moves a monster so that the mystery number is between the two numbers. 7. Continue till the mystery number is shown. 8: or the mystery number in the box.