Question about Casio MS-80TV Scientific Calculator

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MS-80TV AUTOMATICALLY ROUNDS UP TO 1 DECIMAL DIGIT

When the answer should be 1.34, it automatically rounds up to single decimal digit and shows 1.4. How do I make it stop rounding up?

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The [MODE] key can be used to select the modes described below.
Important! The following is a general explanation of Scientific Calculator modes. Note that your calculator may not include all of the modes described here.
1) Calculation Modes
Before performing a calculation, you first need to select the appropriate calculation mode.
COMP: Basic arithmetric calculations
(arithmetic operations, trigonometric functions, etc.)
COMPLEX: Complex number calculations
SD: Single-variable statistical calculations
(sample standard deviation, etc.)
LR or REG: Paired-variable statistical calculations
(linear regression statistical calculations, etc.)
BASE or BASE-n: Binary, octal, decimal, hexadecimal number system calculations
MAT: Matrix calculations (determinants, etc.)
VCT: Vector calculations
EQU: nth degree equations, simultaneous equations
2) Display Settings
Use these settings to control how calculation results are displayed.
Note that changing the Fix and Sci settings does not affect internal calculation results.
Norm: Exponential display format and cancels the currently configured Fix and Sci settings.
Fix: Specifies a fixed number of digits to the right of the decimal place.
Sci: Specifies a fixed number of significant digits.
3) Angle Unit Setting
(90°=?/2 radians=100 grads)
Deg: Degrees
Rad: Radians
Gra: Grads
4) Engineering Mode
Use this mode when you want to input and perform calculations using engineering symbols.

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Posted on Sep 08, 2009

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Round nearest whole number


You must drop all the digits after the decimal mark (,). But first check the digit just after the decimal mark.
If that digit is 0,1,2,3,4 remove all the decimal digits.
If that digit is 5,6,7,8, or 9, you must increase by 1 the digit in the units position.
Examples
78.4.. rounds down to 78
78.5.. rounds up to 79

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Two alternatives:
Press SHIFT MODE 6 then a digit greater than 2 to specify the desired number of digits to the right of the decimal point. For example, of you select 3 the number will be displayed rounded off to 0.004 .
Press SHIFT MODE 9 2 to select the NORM2 mode.
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It automatically rounds the solutions to my fractions as a whole number, how do you stop this?


The number of decimal digits in your display is fixed to 0, so that all decimals are wiped out.
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Change the display mode. Press SHIFT MODE 6 then the number of desired digits after the decimal point. Alternatively, press SHIFT MODE 8 and select one of the "Norm" modes.
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How to round up decimal to 2 decimal


I don't think the calculator has that function, but what you can do is round on your own. If the decimal .005 or greater, you'd round it up to .01. Simple as that!
Hope this helped.

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I have a Casio MS-8TV calculator and want to change the VAT rate to 20% (usage in UK), please. Val


How do I program tax rate into my calculator?
Non-printing models (also applies to HR-8TE printing calculator):

1. Press [AC]
2. Hold [SET/%] key for about 2 seconds
3. Press [TAX+]
4. Input the tax rate
5. Press [SET/%]


Printing models (except HR-8TE):

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Enter only the numerals, not the letters.
^Top What features do our calculators have?
The attached chart shows comparisons of the different calculator models. This includes graphing, scientific and printing calculators. download the chart here
^Top What is the [F CUT 5/4] switch or [DEC] F, 0, 2 button for?
The HR-8TE/HR-8TM have a [DEC] key with F, 0, 2, and 5/4 over it, while many other calculators models have a switch labeled [F CUT 5/4].
The button or switch can control rounding off to a certain number of decimal places. F is floating point (no F indicator on screen), 0 rounds off to 0 places after decimal point, and 2 rounds off to 2 places after decimal point.
The 5/4 applies to either the 0 or 2 modes, and describes the type of rounding off that is performed. The calculator will round down if the digit after the one you are rounding to is 4 or lower, and round up if the digit is 5 or higher.
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This switch is used to determine how many decimal places your answer is displayed in.
ADD (2) is often used for monetary calculations, so that it is not necessary to enter the decimal point. It is automatically placed two decimal places from the end for cents. For example, entering 123 will display as 1.23.
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I have Casio fx-350 MS. On the screen in the top right, it say "fix." And whenever the answer comes out to be a decimal, the calculator automatically rounds it up to 10th place. I need it to...


Cheer up, the calculator can display UP to 10 digits, no more. Internal memory keeps 12 digits. So clearly, this calculator is not fit to handle the precision you apparently are seeking. It may be time to look for a more capable calculator.

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Whenever I try to add or subtract a number with a decimal in it, when I press the + or - key, it rounds the number I entered either up or down to the nearest whole number.


You have the calculator set to round everything in the display to zero digits after the decimal point. To change this, press SHIFT [DISP] and then a digit representing the number of digits you want to the right of the decimal point.

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How to turn printing on and off?


PRINT KEY: To save paper you can only print what is displayed, even in non-print mode. Pressing after the entry of a number will print the entry with the symbol “#” even in non-print mode. Pressing will insert a separator into a number entry such as a code, date, etc. Separators are displayed as a period and dashes but printed as periods. MEMORY + KEY / PRINT ON / OFF KEY: Pressing selects print mode or non-print mode. Cause the calculator to operate in a display / print or display only mode, depending upon the calculator’s present state. “P” on the display: Print mode. “NP” on the display: Non-print mode. MEMORY – KEY / DECIMAL SELECTION KEY: Pressing sets the number of decimal places in the result. “F” on the display: The answer is displayed in the floating decimal system. “3, 2, 1, 0” on the display: Presets the number of decimal places in the answer. “A” on the display (Add mode): The decimal point in addition and subtraction entries is automatically positioned to the 2nd digit from the lowest digit of entry number. Use of the add mode permits addition and subtraction of numbers without entry of the decimal point. Use of , and will automatically override the add mode and decimally correct answers will be printed.

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Everytime I put decimals into my calculator, it just rounds the answer to the nearest whole number.


Increase the number of decimal digits in display.
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  2. Enter the number (6) corresponding to option [6:FIX]
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