SOLUTION: I am in Year 3 and would like to demonstrate that when a whole number is doubled it will always be even. Can you help please?

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Question 1001466: I am in Year 3 and would like to demonstrate that when a whole number is doubled it will always be even. Can you help please?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
An even number by definition is one of the form, n=2k where k is any integer.
So when you double a number, you multiply it by 2, and by definition, make it an even number.