• TauZero@mander.xyz
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    1 year ago

    The full formula is (F-32)*(5/9).

    I have difficulty multiplying by 5/9 in my head, so the quick-and-dirty option is to subtract 32 and simply divide by 2.

    50F - 32 = 18, divide by 2 = 9C (compare to actual value: 10C)