ALOHA MENTAL ARITHMETIC
1:06
Added: 3 years ago
From: alohabroward
Views: 7,672
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  • It's not difficult to +/- 11.

    But it's nice to do arithmetics in mind. One number having in mind, other you hear, that's maybe more difficult than see two numbers on the screen.

    dunedimensia 8 months ago

  • The indian kid is the only one doing it.

    AparnasCakes 3 years ago

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