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Tenjikuronin
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Daidraco
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Adebisi
Clump of Cells
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someone needs to remake B5 with current CGI or just animated spaceships. I have such fond memories of how it all played out but I can't get through more than a few episodes for how terrible the CGI has aged.
Tenjikuronin
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Daidraco
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You always know the right things to say to me during your time of the month. Luh you bubbee!
On an unrelated note to the forum troll : Anyone in Virginia know more about that Oil Spill in Lynchburg? Did it travel much further down the river?
Tenjikuronin
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Chris
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What the shit, are they teaching rounding wrong!?
It should be:
354 + 291 = 645
400 + 300 = 700
Why would you teach a method of estimation that changes 291 into 200 instead of 300? It doesn't even simplify the concept of rounding for learning purposes since they have to learn the phrase "front-end estimation" and doing it right gives a wrong answer.
OneofOne
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All these ignorant posts about that math problem, and people wonder why we are so far behind the world in math and science. It's a very simple teaching tool. Considering the math capability of your average American adult, you should be all for anything that works as a quick check on your arithmetic skills.
They're not teaching rounding, they're teaching estimation. Where rounding allows for an error of +/- 100, estimation (via truncation) is an error of +(0-198). So as long as the estimation is within 200, it's reasonable.
Not sure I agree with the value in actual use, but common core is about understanding abstract concepts, not efficiency.
Edit: Error for 3 digit estimation.
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fanaskin
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