There was, oh, in 1964, such a thing called ‘the business curriculum’. It was on par with ‘collegiate studies’. (This was junior high school.)
That curriculum, followed in high school, prepared me for working in business. Obviously, this was all before hand-held calculators. I learned most of those things mentioned in the article.
All these years, even with the change to computers.
And it started with learning what a checkbook, and a zavings account were.
What used to be a ‘blonde joke’ has become reality, i
e., “How could I be out of money??!! I still have checks left!”
IIRC, my ‘General Business’ class was in the 10th grade. That would have been the 1965-66 school year. I agree it was one of the more valuable things I learned in 16 years of formal schooling.
LOL. Years ago my wife worked at a bank... had a customer whose wife thought exactly that way. Always bouncing checks.