▲ 1265 ▼ Panik (i.postimg.cc) submitted 2 years ago by ickplant@lemmy.world to c/lemmyshitpost@lemmy.world 146 comments fedilink hide all child comments
[–] BruceDoh@sh.itjust.works 1 point 2 years ago (1 child) 14: 1 + 8 = 7. Not db7 permalink fedilink source parent hideshow 2 child comments replies: [–] sockenklaus@sh.itjust.works 3 points 2 years ago (1 child) You clearly mean: 14: 1 + 8 = 9 (not db 7) Someone else in this thread correctly stated: "Chop of last digit, double it and subtract from what is left" 14: 1 - 8 = -7. (dB 7!) Math is awesome, I didn't know this trick! permalink fedilink source parent hideshow 2 child comments replies: [–] BruceDoh@sh.itjust.works 1 point 2 years ago Yes, that's what I meant. The subtract rule works. permalink fedilink source parent
[–] sockenklaus@sh.itjust.works 3 points 2 years ago (1 child) You clearly mean: 14: 1 + 8 = 9 (not db 7) Someone else in this thread correctly stated: "Chop of last digit, double it and subtract from what is left" 14: 1 - 8 = -7. (dB 7!) Math is awesome, I didn't know this trick! permalink fedilink source parent hideshow 2 child comments replies: [–] BruceDoh@sh.itjust.works 1 point 2 years ago Yes, that's what I meant. The subtract rule works. permalink fedilink source parent
[–] BruceDoh@sh.itjust.works 1 point 2 years ago Yes, that's what I meant. The subtract rule works. permalink fedilink source parent
