Copyright © University of Cambridge. All rights reserved.
'One Million to Seven' printed from http://nrich.maths.org/
Start by putting one million ($1 000 000$) into the display of your
If you can see this message Flash may not be working in your browser
Please see http://nrich.maths.org/techhelp/#flash to enable it.
Can you reduce this to $7$ using just these six buttons - the $7$
key and add, subtract, multiply, divide and equals as many times as
What is the shortest way can you find to do it?