[apparent]

Yes, it is nice that there are more ways that are taught now. It can turn into too much, however. Some parents I know dislike that their kid is taught 8 different ways to do long division, at the expense of having sufficient time to practice any of the methods. They end up taking the kids to math tutoring so that they can actually learn how to do the mechanical steps.

But it is for sure good that there are multiple ways to do various operations, and there are plenty of youtube videos that students can turn to if what they have been taught does not resonate for them.

[wolpoli]

In computer science, we have classes on memorizing/implementing various algorithms so that we may understand their behavior. Could anyone name the reason why grade school students memorize and execute the long division algorithm? I certainly hadn't used long division since grade school.

[apparent]

Grade school is years long, so a skill you're supposed to know in 3rd grade is one that you need to be able to faithfully execute for the next 3 years. The fact that you'll get a calculator in middle school doesn't help you if you're struggling through 4th and 5th grade.