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Mathematics, 21.09.2020 18:01 jahzz

What is 42 x 3? (try to not use a calculator though) I don't actually need this to be solved but, I want to see if you guys can use mental math to solve this problem! :)

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What is 42 x 3? (try to not use a calculator though) I don't actually need this to be solved but, I...
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