this post was submitted on 03 Dec 2023
417 points (100.0% liked)

196

16436 readers
3231 users here now

Be sure to follow the rule before you head out.

Rule: You must post before you leave.

^other^ ^rules^

founded 1 year ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 1 points 7 months ago (1 children)

Schools only started teaching that rule relatively recently

Recently? The order of operations rules have been taught for more than a century (we can see them in Lennes' letter).

[–] [email protected] 1 points 7 months ago (1 children)

Order of operations in general, yes. Implied multiplication coming before explicit multiplication/division is what's recent.

[–] [email protected] 1 points 7 months ago

Implied multiplication coming before explicit multiplication/division is what’s recent.

  1. "implicit multiplication" is not taught, because there's no such thing as implicit multiplication
  2. the "controversy" over it isn't recent either - we can see Lennes complaining about it more than 100 years ago! The more things change the more they stay the same (sigh).