'Almost' is not a math term.
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There's never a shortage of chess.com members who try to be mathematicians.
Dec 21, 2022
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#24
They all are better than you in math ;) plus were just answering questions and explaining ut sometimes explining is too complicated for some people and they think theyre pretending to be mathematics but they all are just explaing their answer to somebody’s question
Dec 21, 2022
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#25
shadowslayer wrote:
Because 1=1
so
1 cannot = .9 repetitive
A mathematical value cannot have multiple value's, because it is a single value.
I know this is 13 years old, but lol... has no concept of what the = symbol means.
Dec 21, 2022
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#26
Knight_king1014 wrote:
Interesting 🤔🤔🤔
Kids shouldn't bump topics that are older than they are.
10 * 0.999999... = 9.999999 = 9 + 0.999999...
9 * 0.999999... = 9
0.9999999... = 1
Dec 21, 2022
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#28
tygxc wrote:
10 * 0.999999... = 9.999999 = 9 + 0.999999...
9 * 0.999999... = 9
0.9999999... = 1
That's not a logical progression... how do you get the 2nd line?
Dec 21, 2022
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#29
I think the easiest example for kids is this...
Do 1/9 by hand (or use a calculator) and you get 0.11111...
Now do 2/9 and you get 0.22222
.
.
.
7/9 = 0.777...
8/9 = 0.888...
9/9 = 0.999...
Wait, but 9/9 = 1 
Dec 21, 2022
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#30
Nope Gentlemen (and Ladies too, if any!)
999...ad infinitum does not equal 1-0-0...000 ad infinitum. But (999...ad infinitum)-1, not 0 !
Dec 21, 2022
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#31
Mathemagician_2 wrote:
0.999... does not equal 1.000...
Name a number in between the two.
Or, for example, subtract the two. You would get 0.0000... and the zeros go on forever, so it's just zero, so the two numbers are equal because subtracting them = 0.
Chessguy2 wrote:
I just wanted to say 1=.9 repeating, any one differ?
its .9 bar
if .9 bar is equal to 1 and is irrational then 1 is irrational
Dec 21, 2022
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#34
The final digit of an irrational number is Infinitesimal, but not equal to 0.
Likewise the final digit of 9, 99, 999 finishes at (10^1)-1, but never becomes 10-0, just always (10^n)-1.
Make sense??
Chessguy2 wrote:
I just wanted to say 1=.9 repeating, any one differ?
While the two values have a value that seems the same, I believe that the 2 values are slightly different. This argument is similar to asking if infinity is 1/0. While if you approximate both sides they look the same, if you set them equal to each other there are some fundamental flaws. If you believe in completed infinity, then you would think that they are the same, but if you did not believe in infinity, and believe in approaching infinity, you would see that .9 repeating approaches 1, but never equals 1. The algebraic proofs hinge on the fact that .1 repeating = 1/9, so .9 repeating = 1, but they are never equal. Just approaching. Even though repeating states that the decimal goes on forever, it is more like approaching 1/9, like my infinity analogy.
They are not equal, just approaching each other.
Dec 21, 2022
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#37
And 1 - 0.99999999999 is not equal to zero. It's an infinitely small number
But*