James’ teacher had him pick out 16 buttons. He laid them out in the pattern below and said, “16 is an odd number because they don’t all have buddies”. Do you agree, explain.
James’ Buttons
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A woman came to the store requesting a box of candies that could be shared equally among all the people coming to visit. She wasn’t sure whether there would be three, four, five, or six people sharing the boxes. What size box should she buy that would work for any of these numbers?
Taken from: Lessons for Introducing multiplication by Marilyn Burns
MyRichProblems 