Barbie caught a lot of flack back in the ’90s for declaring, “Math class is tough!” Today we find ourselves in the disorienting position of defending her. We recently got a note from an anonymous ...
Hear that change jingling in my pocket? Good. I have two little questions for you. I have a quarter, a dime and a nickel. How much money DO I have? I have three coins. How much money COULD I have? The ...
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