Oops. Of course I meant to say there's more than one way to express 9.
4+3+2 and 7+2 are "equally" valid ways to represent 9.
Yes, my 3rd grader is given that kind of problem, but with a longish underscore instead of the parentheses. Sometimes it's a box, but the underscore is better, because it's a familiar holdover from learning to read, where a drawing of a feline is accompanied by "__at" and they're told to fill in the blank. I agree that using parentheses would be as poor a choice as "()at" when you want them to produce the three letter synonym for feline.
The mathematical pedagogy is fine; they're trying to develop numeracy (numeric literacy) by instilling the idea that there's more than one way to "express" 7, but they don't (yet) want to muddy the waters more by mixing letters and numbers and using phrases like "solve for"
Tuna comes pre-breaded now? Talk about a time saver!
If memory serves, (no pun intended), Michael Keaton's character in some movie or other already had the idea of feeding the tuna a diet high in mayonnaise in order to save time in the production of tuna salad.
....it's called 'using batteries'
With this form of wireless power, you don't have to remember to replace the batteries, and you don't have to interrupt the device from working while the batteries are being replaced.
....With wireless power, would each device need some kind of special wireless receiver/transformer?
Yes, just like wireless phones, which each need a special wireless receiver/transformer.
because goodness knows in these troubling times, our society needs to concentrate our technological progress into the betterment of movie special effects, and a better cost structure for producers of action blockbusters.
Players who get miffed when others don't follow Basic Strategy are just trying to feel superior. (Hmm, just like people who post on Slashdot, including you and me?)
It really is all a wash. If you're on first base (first player to be dealt to) and the count is negative (the composition of the remaining cards is unfavorable to all the players) then if everybody after you hits a 20, you should be happy because by taking cards they are bringing the deck back towards neutral or favorable after you've played but before your next bet, which is precisely what you want. In that situation their (provably) incorrect play is improving the odds for you. But of course over time their incorrect play is just as likely to hurt your odds, so you might as well give your blood pressure a break, because it will probably improve your counting.
All of this is true even if you play perfect Basic Strategy but you don't bother to count.