Copyright © University of Cambridge. All rights reserved. We had
just a few solutions sent in from pupils trying to give some
kind of proof for this challenge. Jasmine from Salcombe Prep.
School in London sent in this picture and wrote: Every time the
numbers will make a rectangle and from Michelle at the
International School in the Seychelles we were sent the
following: When you multiply an even and an odd together it will
always be an even number and when you times even and even
togther it will also be an even number and how I did this was
with cubes and I showed my teacher and he agreed with me. Chris
from St. Mary's Catholic Primary, England had a good way of
showing it: An odd number multiplied by an even number will make
an even number. Key: different colour = different number Finally
from Christopher and Rei at Seoul Foreign School (SFS) , South
Korea (Republic of Korea) we have the following: Answer for Odd
Times Even: 4*3=12 that's the same as 4+4+4 4 is even. Everytime
an even is added to a even the