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Samuel Grubbs
·Feb 23, 2015

9+10=21

Description

A person writes a math problem on lined paper, showing a calculation involving 9 + 10 and a multiplication of 3 x 3, with a hand drawing arrows and a smiley face around the numbers, then the camera quickly moves to show a man with a hand on his forehead, looking confused.

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Source: Vine
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9+10=21