Question about Casio FX-115ES Scientific Calculator

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I am trying to multiply two different decimals (1.5x.005) i get 7.5x10x help i need the out put to be .0075

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Try to use fix function to reduce the number of decimals to 4 digits then you will get what you want. i hope so.

Posted on Oct 08, 2010

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0.045 as a percentage

To convert a decimal to a percent, multiply the decimal by 100, then add on the % symbol. An easy way to multiply a decimal by 100 is to move the decimal point two places to the right

Nov 15, 2016 | Office Equipment & Supplies

1 Answer

Convert decimal fraction to binary

None of these solutions answer his question. When converting a fraction or any number with decimal places to Binary, the TI-89 gives "Error: Domain error." For example, entering .6875 [2ND][MATH][BASE][BIN] does not work. I haven't found a way to do it with built in functions. In order to do these types of conversions, I use the following method.

Convert: 0.6875 to Binary
- left of decimal is a 0, so write down a 0, then a decimal point: (0.)
- multiply .6875 x 2 = 1.375 left of decimal is 1, write a 1: (0.1)
- drop the 1 and multiply .375 x 2 = .75 left of decimal is 0. write a 0: (0.10)
- multiply .75 x 2 = 1.5 left of decimal is 1, write a 1: (0.101)

- drop the 1, multiple .5 x 2 = 1. left of decimal is 1, write a 1: (0.1011).
- since there is no more fraction, the final answer is (0.1011). Hope this helps.

Jan 27, 2012 | Texas Instruments TI-89 Calculator

1 Answer

242/6 Need the breakdown of this division, on calculator gave 40,3 By hand 4,3 Can someone help me on this

There is something wrong with your hand calculation.

40 multiplied by 6 is 240, which is close to 242, so 40 is close to 242/6. On the other hand, 4 multiplied by 6 is 24, which isn't even close to 242. Apparently you slipped a decimal point when you divided 240 by 6.

242/6 is 40 and one-third, or 40.333.... Rounded to one digit after the decimal point, it is 40.3.

Oct 27, 2011 | Office Equipment & Supplies

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How to change the given decimal to fractions

Hi, Divide the top into the bottom number and you should get a decimal. 1/4 is .25 1/2 is .50 .....
To change the decimal in to to a fraction. Put the decimal over 100 and multiply.and then break that down.

Jun 28, 2011 | Computers & Internet

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I'm getting answers in fractions when multiplying decimal numbers like 5.5x3.5=77/4 instead of 19.25. Can someone help with this, I have a test tomorrow and I need to figure out what's wrong with the...

In the default MthIO mode the calculator will always try to show exact or symbolic results. You can convert a single result to decimal by pressing the S--D key. If you want all results to be in decimal, press SHIFT MODE 2 to switch to the LineIO mode.

Nov 11, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

Convert 4 2/9 to a decimal

Step 1: Find a number you can multiply by the bottom of the fraction to make it 10, or 100, or 1000, or any 1 followed by 0s. Step 2: Multiply both top and bottom by that number. Step 3. Then write down just the top number, putting the decimal place in the correct spot (one space from the right for every zero in the bottom number) Example 1: Express 3/4 as a Decimal Step 1: We can mulitply 4 by 25 to become 100
Step 2: Multiply top and bottom by 25:
×25 left-up-over-arrow.gif 3 = 75

4 100 left-under-over-arrow.gif ×25 Step 3: Write down 75 with the decimal place 2 spaces from the right (because 100 has 2 zeros);
Answer = 0.75

Example 2: Express 3/16 as a Decimal Step 1: We have to mulitply 16 by 625 to become 10,000
Step 2: Multiply top and bottom by 625:
×625 left-up-over-arrow.gif 3 = 1,875

16 10,000 left-under-over-arrow.gif ×625 Step 3: Write down 1875 with the decimal place 4 spaces from the right (because 10,000 has 4 zeros);
Answer = 0.1875

Example 2: Express 1/3 as a Decimal Step 1: There is no way to multiply 3 to become 10 or 100 or any power of 10, but we can calculate an approximate decimal by choosing to multiply by, say, 333
Step 2: Multiply top and bottom by 333:
×333 left-up-over-arrow.gif 1 = 333

3 999 left-under-over-arrow.gif ×333 Step 3: Now, 999 is nearly 1,000, so let us write down 333 with the decimal place 3 spaces from the right (because 1,000 has 3 zeros):
Answer = 0.333 (accurate to only 3 decimal places !

Sep 22, 2009 | Black & Decker Juicers

2 Answers

I need to convert decimals to fractions

Press [MATH][1:ToFrac] to convert an aswer to fraction.
If you enter 18.52[ToFrac] [ENTER gives 463/25

[MATH][2:ToDEC] converts a fraction to a decimal number.
Hope it helps.

Sep 22, 2009 | Texas Instruments TI-84 Plus Silver...

1 Answer

When I multiply a decimal, I get a fraction.

To convert from decimal to fraction and vice versa pess the [S<->D] key. Alternatively, if one of the whole numbers (integers) has decimal mark (dot) the result will be decimal.
Hope it helps.

Sep 10, 2009 | Casio FX-115ES Scientific Calculator

2 Answers

Problems with fractions on the Casio fx-115es

To convert fractions to decimals or decimals to fractions, you use the [S<->D] key. Each time you press the key the result is displayed in the other format.
Alternatively, If you multiply or divide two integer numbers put a decimal mark at the end of one of the numbers (any one). The result will be displayed in decimal format.

Hope it helps.

Jun 01, 2009 | Casio FX-115ES Scientific Calculator

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