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Math stories.com
MathStories.com provides tons of resources, entitled "House of Math Word Problems for Children." The site includes problems, state standards, and more.
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Real Sociedad Matematica Espanola: Divulga Mat: Erase Una Vez Un Problema
Short stories written with the intention to entertain those who think that mathematics must be serious or who reject mathematics. These problem stories with an added dose of humor shows that letters and numbers are a bit at odds.