We like to think that we're pretty good at math, especially after years of schooling. But every once in a while, a simple third-grade math problem manages to trip us up and make us question our ...

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For third graders, word problems are a fun challenge that encourages problem-solving. For adults, they often bring back memories of tricky math tests and unanswered questions.

A focus on rich, real-world problems makes math more interesting, relevant, and enticing to students.

As the number of problems solved rises, so do the points. And if the student login from home, the problems are worth 1-point-5 points. For students, 99 Math is a hit.