RT @Transum: You could be the first person in the World to earn a trophy for Indices True or False online quiz level 4… https://t.co/WwwEVCdg2w - The Calculator Guide from Twitter

You could be the first person in the World to earn a trophy for Indices True or False online quiz level 4 https://t.co/oO6LTcGq7l #Mathchat http://pic.twitter.com/K9c7a7k0B8

— Transum (@Transum) October 28, 2017

from Twitter https://twitter.com/GuideCalculator

October 28, 2017 at 08:13AM
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