• 🇰 🌀 🇱 🇦 🇳 🇦 🇰 ℹ️@yiffit.net
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    1 year ago

    I used to use the slash on 7s when I was in Jr high because it was legit and nobody did it.

    But, like… Why? What purpose does it serve? It’s not like the slash through a 0 to differentiate it from an O.

    • kboy101222@lemm.ee
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      1 year ago

      My 7s and 1s look too similar without it, to the point it was affecting my math grades. This was sixth grade. I’ve done it ever since

    • Lorindól@sopuli.xyz
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      1 year ago

      In my country the slashed 7 became mandatory in the national curriculum in the 1930’s. Our military strongly requested this in order to achieve better accuracy in artillery fire control - in those days every calculation was done by hand and mixing 1’s and 7’s could easily have deadly results.

      This practice was quickly adopted by the whole population and it was a great success with no drawbacks. The slashed 7 makes it impossible to mix 1’s and 7’s, therefore it is the superior choice.