Wednesday, December 29, 2010

Favorite comments of '10: 1crosbycat on "Landmark Numbers"

(Math problem of the week: landmark numbers...)

1crosbycat

I never heard of "landmark numbers". Can I make up my own, or are they defined somewhere? Is this concept like the new "compatible numbers" which I have seen defined as a "friendly number" that is easy to work with. 

It's very important to advise family members, friends, colleagues, other parents about landmark numbers - use of them may be a sure sign of a crappy math program!

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