Look, I know common core is clearly killing this country and making coming up with arbitrary intermediate results is the dumbest thing ever invented by dumb people.
That intermediate result? Not arbitrary.
Since we count in base ten, the natural way we group things when we add is to put them in groups of ten, so the thing you the smart smarties do in their heads, the dumb “common core” folks have to do by putting things into groups of tens. Or hundreds, if you’ve got a hundred of them.
To cite the chapter and verse of the “Common core” standard:
Use place value understanding to round whole numbers to the nearest 10 or 100. (Third grade)
Is it more advanced than what I was learning in third grade? Yes and no. I was doing long division in third grade, and stopped doing long division shortly afterward forever. I use the “grouping things into tens” skill pretty regularly.
Maybe when the apocalypse happens I’ll need my long division skills to rebuild civilization, but until then I’ll use my grouping and rounding skills to manipulate numbers quickly in my head.
In the meantime, folks who want to can take some extra time at home and teach their kids long division just in case.
I wasn't plugged into pear pie possibilities. How does it hold up?
I use Keiffer pears, which they don’t sell in grocery stores, but lots of folks grow in their yards, and can occasionally be found in the farmers market (they were a dollar a pound at the Nashville farmers market Saturday, but she warned me I couldn’t eat them.)
They don’t break down the way an ordinary pear or an apple would, so you need more thickener than your apple pie recipe calls for, but cooking leaves them crisp and solid in the way cooking turns other apples or pears into applesauce.
I guess that’s where it breaks down—half the stalls at the farmers market get their produce from the same distributor as Kroger, so the hardest step is finding an ingredient Kroger doesn’t carry.