Question about Casio MS-80TV Scientific Calculator

I to have the same problem and have contacted Casio and awaiting an answer I type in 10+10% to get 11.1111 on the MS-7TV this is not correct. I also tryed it on other Casio calculators to get a similar problem. I thought it may be linked to the tax rate calcuation but when I changed this I get the same answer.

I get a correct answer from alternate brands of calculators.

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The issue is the fact that you are adding the %. You need to Multiply it by 1.1 instead of trying to add 10%. This is a wonky equation anyway, because your not specifying what you want to add 10% of. This is why you are getting a weird answer.

Posted on Jun 20, 2009

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From CASIO FAQS:

**Why do I get the wrong answer when doing a percent calculation?**

Make sure that you are following the correct procedure.

Adding 10%: 200 [x] 10 [%] [+]

Subtract 10%: 200 [x] 10 [%] [-]

Posted on Aug 01, 2014

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Posted on Jan 02, 2017

No need to program it. It is enabled by default. For a percentage discount, just type the percentage eg 10 then press %- button. For amount discount, type the dollar amount eg 2000 (no decimal) then press - button.

Dec 20, 2015 | Casio Parts Cash Register PC Desktop

On most Casio calculators you must type: '175 x 20 % -' (and '+' is for adding a percentage)

Feb 18, 2015 | Casio MS-80S Calculator

You have to type 85 and the x key, then the = key. The result doesn't matter. Then type .1 and = key, the result will be 8.5. Then type .2 and the = key. The result will be 17, and so on!!! I wish you enjoy it. Aldo

Sep 19, 2014 | Casio HR-100TMPlus Calculator

Here is a sample of the percentage calculations that the calculator can perform. You will not see among them the conversion from decimals to percentages.

To convert from decimals to percents move the decimal mark 2 places to the right and append the % sign.

To convert from percents to decimals, move the decimal mark 2 places to the left.

To convert from decimals to percents move the decimal mark 2 places to the right and append the % sign.

To convert from percents to decimals, move the decimal mark 2 places to the left.

Sep 28, 2013 | Casio FX-82MS Scientific Calculator

1÷1700 expressed as a decimal is 0.000588235, which is 5.882...×10^-4. [NB not 10^4]

To convert this to a percent, remember that "per cent" means "per 100" which also means "divide by 100". To keep the answer correct, if you are dividing by 100 you must also multiply by 100.

The get the answer in percent, you must therefore multiply the previous answer by 100 to get**0.00588235 percent**. (or 5.882...×10^-2 percent).

To convert this to a percent, remember that "per cent" means "per 100" which also means "divide by 100". To keep the answer correct, if you are dividing by 100 you must also multiply by 100.

The get the answer in percent, you must therefore multiply the previous answer by 100 to get

Mar 30, 2011 | Casio FX83ES Scientific Calculator

I have a Casino MS-80S and yea, the percentage works different. As example to take 100 and subtract 10%, this is what I do: 100 X 10% - and then I get the answer 90 after I press the minus key. To add the percentage instead, 100 X 10% + will give me an answer of 110, after I press the plus key.

Apr 04, 2009 | Casio HR8TM Calculator

From the manual:

Function: Keys

Answer

Percentage: 100 x 5% 100 x 5 % 5

Add On: 100 + (100 x 5%) 100 x 5 % + 105

Discount:10 - (10 x 20%) 10 x 20 % - 8

Ratio: 30 = 60 x ?% 30 (division key) 60 % 50

% change: 12 = 10 + (10 x ?%) 12 - 10 % 20

Mark-up: 25% mark-up of 120 120 = 25% 160

- 40 (profit)

Function: Keys

Answer

Percentage: 100 x 5% 100 x 5 % 5

Add On: 100 + (100 x 5%) 100 x 5 % + 105

Discount:10 - (10 x 20%) 10 x 20 % - 8

Ratio: 30 = 60 x ?% 30 (division key) 60 % 50

% change: 12 = 10 + (10 x ?%) 12 - 10 % 20

Mark-up: 25% mark-up of 120 120 = 25% 160

- 40 (profit)

Mar 03, 2009 | Casio MS-80TV Scientific Calculator

dear tonya,

for example if u want to calculate 5% of 200 chocolates then enter 100 followed by "x"(multiplication symbol) and type 5 followed by "shift =".. u will get answer as 10..try this..

for example if u want to calculate 5% of 200 chocolates then enter 100 followed by "x"(multiplication symbol) and type 5 followed by "shift =".. u will get answer as 10..try this..

Sep 04, 2008 | Casio FX-260 Calculator

Type 100 x 20%, and then hit the minus button

Dec 05, 2007 | Casio Office Equipment & Supplies

I've been searching for the solution to this problem, as well. Apperently, there's no user's manual for this calculator. I'm going to call Casio on Monday to see if they can send me some sort of instructions. (800)962-2746 or (609)395-0154

good luck!!

good luck!!

Oct 25, 2007 | Casio MS-80TE Calculator

Jun 07, 2014 | Casio MS-80TV Scientific Calculator

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