Question about Casio fx-300ES Calculator

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My calculator will not divide numbers if they do not go into each other evenly, ex. 73/12.

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If you mean the result shows up as 73/12, then it is dividing 73 by 12 and coming up with 73/12 as the result, which is perfectly correct. To convert a single result to decimal, press the S--D key. To have all results come out in decimal, press SHIFT MODE 2 to select the LineIO mode.

Posted on Nov 05, 2010

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1 Answer

How do i calculate percentage


small number divided by big number multiplied by 100 = %
example what % is 25 of 150
25 divided by 150 multi[plied by 100= 16.3 % approx or on your calculator-- small number divided by big number then % button

Mar 14, 2016 | Office Equipment & Supplies

1 Answer

How do i factor numbers on a ti-30xs calculator


This calculator does not have a key that you can use to find the prime factor of an integer.
You can however use the calculator to find the factors
1. If number is even divide it by 2
Keep dividing by 2, while keeping track of how many times you divided by 2.
If you divided 5 times by 2 before getting an odd number, then your first factor is 2^5
2. Now try dividing by 3, keep track of the number of times you divided by 3 before you could not divide by 3 any more. If you divided 0 times by 3, your second factor is 3^0, or 1 and 3 is not a factor.
If you divided 4 times by 3, your second factor is 3^4
3. Divide by 5, until you can't any more. Keep track of the number of times you divided by 5.
4. Divide by all other prime numbers 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, etc. For each prime number, keep track of how many times you divided by it, until you could not any more.

Example: 23100
Division by 2
23100/2=11550 ---------> 1 division by 2
11550/2=5775 ----------> 2 divisions by 2
Note that 5775 is not divisible by 2. No more divisions by 2.
First factor is 2^2


Division by 3:
5775/3=1925 ----------> 1 division by 3
1925/3=641. 66667 Not an integer. No more divisions by 3.
2nd factor is 3^1

Division by 5 (number ends in 5)
1925/5 =385 -------> 1 division by 5
385/5=77 ----------> 2 divisions by 5 and no more (quotient does not end in 0 or 5)
3rd factor is 5^2

Division by 7
77/7=11 --------> 1 division by 7, and no more
4th factor is 7^1=7

Division by 11
11/11=1
5th factor is 11^1=11

Assembling the factors 2^2, 3^1, 5^2, 7, 11
Prime factorization of 23100 is
23100=(2^2)(3)(5^2)(7)11

Dec 18, 2013 | Texas Instruments TI-30XA Calculator

1 Answer

How to find G.C.F. on a TI-30xIIs calculator?


I don't think there's specific key for this but you can do it this way:

  1. Divide those 2 numbers for which you want to find gcf
  2. If you get result as decimal number press keys [2nd][PRB] to display it as fraction
  3. Also if fraction you get is in form a b/c (ex. 1 2/3) you have to convert it to form d/c (for 1 2/3 that would be 5/3)
  4. Greatest common factor is then 1st number divided by numerator (or 2nd number divided by denominator)
For example:
  • You want to find greatest common factor of 30 and 18.
  • You divide them: you should get 5/3 (after converting result to fraction of form d/c, as described in steps 2 and 3).
  • This means that 30/18=5/3=5x/3x (x is gcf here).
  • Now you know that x=30/5=18/3=6 so greatest common factor is 6.

I hope this helps :)

Sep 10, 2011 | Texas Instruments TI-30 XIIS Calculator

1 Answer

What function should it be on to get a whole number answer for division problems EX: 15 divided by 2


15 divided by 2 isn't a whole number.

If the calculator is showing a fraction and you want to see it as a number, press the S--D key to switch between symbolic and decimal values. To have all results appear in numeric form, press SHIFT MODE 2 to select the LineIO mode.

If you want to set the calculator to show only whole number, press SHIFT MODE 6 0 to select FIX 0 display mode.

Feb 22, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

When I divided a problem EX. 3/2 the calculator will not answer in decimal


Hi,
You are not dividing problems, you are dividing number. This said, there is a simple way to ensure that the results of divisions are displayed in decimal form: It consists in putting a decimal mark (decimal point) at the end one integer (whole number)
ex:
3/2. gives 1.5
3./2 gives 1.5
3./2. gives 1.5

You can also configure your calculator to display all numerical results in decimal format. To do that press [MODE][F2]. Use the down arrow to select the ligne Exact/Approx, then use the right arrow to unfold the menu options 1:Auto
2:Exact
3:Approximate
Select 3:Approximate and press [ENTER]

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Hope it helps.

Nov 15, 2009 | Texas Instruments TI-89 Calculator

1 Answer

Sin,cos,tan answers arent coming out right. They are off by a couple of numbers Ex: tan 36.7 enter 7 divided by 60 then add 36 and i get .729658205 instead of .74537703


Hello,
What you deplore is perfectly normal.
7/60= 0.1166666667 the last 6 has been rounded to 7 (result is periodic)
36 + 7/60= 36.1166666667
36.7 -36-7/60=0.8166666667
tan(36 + 7/60) = 0.7296582051

Compare the tangents of two close numbers
tan(36.7)= 0.7453770282
tan(36.66666667)=0.7444724166

True, the precision of calculator is limited, but the number of digits it can display has a lot more precision that real-life problems really require.

Hope it helps.




Oct 02, 2009 | Texas Instruments TI-30XA Calculator

1 Answer

How to write a fraction on the TI 83 plus


FIRST THE NUMBER YOU ARE DIVIDING EX. NUMERATOR DIVIDE SIGN DENOMINATOR THEN TO GET TO THE LOWEST COMMON DEMONINATOR GO TO mATH BUTTON WHEN SCREEN APPEARS YOU WILL BE IN FRAC. HIT INTER. GLENDA

Jun 04, 2009 | Texas Instruments TI-83 Plus Calculator

3 Answers

Calculator


If i type 10+10 it comes up with 10+10=20 and my setting is on Math G . So mabey try that ?

May 07, 2007 | Casio FX300S-TP Calculator

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