RT @mathsman112358: 14 years after buying it, replacing the battery in my Casio calculator for the first time https://t.co/644jgrZnsM - The Calculator Guide from Twitter

14 years after buying it, replacing the battery in my Casio calculator for the first time pic.twitter.com/644jgrZnsM

— Michael Turkington (@mathsman112358) February 17, 2018

from Twitter https://twitter.com/GuideCalculator

February 18, 2018 at 07:02PM
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