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Duolingo Math | Hacker News Reader
Duolingo Math
duolingo.com
20 points
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soheilpro
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3 comments
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rationalist
·
Is this something users asked for, or that a manager wanted as to pad their resume, justify a budget, etc?
worldsavior
·
We all know this!
Gelob
·
nice
Reply on news.ycombinator.com