Copyright © University of Cambridge. All rights reserved. 'ACE,
TWO, THREE...' printed from http://nrich.maths.org/ Take a look
at this video. Can you work out how Charlie ordered the cards to
perform the trick? Once you've had a chance to think about it,
click below to see some suggested starting points: Charlie
started by thinking: “Ace” has three letters so it should go in
third place. “Two” has three letters so it should go in sixth
position. “Three” has five letters so it should go in eleventh
position. “Four” has four letters so it should go in fifteenth
position... Luke started by thinking: I should be able to work
backwards, so I'll start with just the Jack, Queen and King and
see what happens... Alison started by thinking: If I arrange the
cards from Ace to King to do the trick, I won't reveal the cards
in the right order. But I could keep a record of the sequence
they come out in... Can you take each of their starting ideas
and develop them into a solution? Can you use each method to
perform the tri