The ones digit (of any number x) is easy.
It is = x (mod 10) (i.e., it is the remainder of the number upon division by 10. For example, 3246 (mod 10) = 6 because 3246/10 = 324 Remainder=6)
The tens digit requires a little more.
If you use int(x), (which is the greatest integer ≤ x function and is used in many computer programming languages), then the tens digit of any number x is:
int(x/10) (mod 10)
In your example,
3246/10 = 324.6
int(324.6) = 324
324 (mod 10) = 4
2006-10-28 15:57:05
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answer #1
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answered by Scott R 6
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Multiplying by 1 or 6 gives you a 6 for the ones digit.
Multiplying by 2 gives you a 4 for the hundreds digit.
2006-10-28 22:41:02
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answer #2
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answered by Anonymous
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Try this expression for a given integer x and place position n where units =1, tens=2, etc
d = int((x-10^n*int(x/10^n))/10^(n-1))
where d is the digits. The mathematical operators have their usual meaning and int is the integer part function eg int(1.2) =1
For example x=1234 and n=2 will return d=3
Have fun. Onya....
2006-10-29 01:08:05
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answer #3
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answered by A S 4
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The ones :
x - (x/10)*10
3246 - (3246/10)*10 = 3246 - 324*10 = 6
you divide and ignore the remainder.
2006-10-28 23:53:27
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answer #4
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answered by gjmb1960 7
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Let n be the number.
Units digit = n - 10 * INT(n / 10)
Tens digit = INT(n / 10) - 10 * INT [ INT(n / 10) / 10]
or what may be easier to do and see :
First, let x = INT(n / 10), then :
Units digit = n - 10x
Tens digit = x - 10 * INT(x / 10)
You can keep on doing this.
Now let y = INT(x / 10)
The hundreds digit is then : y - 10 * INT(y / 10)
Of course, the starting digit of a 4-digit number
can always be calculated by : INT(n / 1000)
2006-10-29 00:06:04
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answer #5
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answered by falzoon 7
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You can divide it by 10 and subtract off the part that is to the left of the decimal and then multiply by 10.
2006-10-28 22:18:26
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answer #6
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answered by Anonymous
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it is just what number in the order they are in. 3thousand 2hundrad 4tens and 6ones.
2006-10-28 22:16:31
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answer #7
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answered by mouses_moyer 2
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