Question about Casio Brand New-Fx-82au Plus - Scientific Calculator, Free Postage

# My calculator works when turned on but the AC, Divide, Minus and Plus button doesnt work.

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Buttons on the contact board are dirty, or worn out. Not easly repaired

Posted on Dec 11, 2015

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Posted on Jan 02, 2017

When it is on. Try to hit MODE then 0, and MODE then 4. And thats it.

Posted on Jun 06, 2009

A simple procedure THAT MAY REVIVE the calculator is to reset the calculator by pressing the RESET button on the back. Use a straightened paper clip to press the recessed button.

Posted on Apr 06, 2010

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## Related Questions:

### Calculator buttons not working

You are lucky. Calculate the number by which you want to divide (divisor), then press the reciprocal key (1/X) or raise it to the -1 power.

Jan 25, 2014 | Office Equipment & Supplies

Minus and change-sign are two completely different things. Minus is used to subtract one number from another. When you press minus when the input line is empty, your telling the calculator to subtract. The only way it can subtract the number you're about to put in is to subtract it from something else, and that something else is the previous answer, hence the "Ans."

If you want to input a negative number, use the change-sign key. If you want to subtract one number from another number, use the minus key.

Try pressing the plus key when the input line is empty. You'll get Ans+ in this case as well, The same with multiply and divide, among others, and for the same reason.

Sep 23, 2013 | Texas Instruments TI-84 Plus Calculator

### Ti 84 plus cannot clear or divide HELPPP!

We had one that did the same thing. The retailer we purchased it from advised us to remove the batteries and put fresh ones in, then turn it back on. Ours resolved itself. Hope this works for you. If not, return it to the retailer you bought it from. Could be a lemon.

Jul 11, 2012 | Texas Instruments TI-84 PLUS Graphic...

### I'm trying to find the fraction button on my texas instrument ti 83 plus calculator and cannot find it

There is no "fraction" button on the TI-83 plus. You will have to press the divide key (2 buttons below the CLEAR key) and then use the parentheses (immediately to the left of the divide key) to tell the calculator the correct order of operations. For example, "1/3x+9" means ".333333x+9", but "1/(3x)+9" means the "x" goes on the bottom of the fraction.

Jan 18, 2011 | Texas Instruments TI-83 Plus Calculator

### How to calculate mod of a number in scintific calculator

To calculate modulo with the FX-115MS calculator, follow these steps:

e.g.: 9%4=1

9 (minus) 9 (divide) 4 (times) 4 =

so, 9-9/4*4 will yield the correct answer of 1

May 25, 2010 | Casio FX-115MS Plus Calculator

### The buttons on my casio fx-9750g plus arent working

A simple procedure THAT MAY REVIVE the calculator is to reset the calculator by pressing the RESET button on the back. Use a straightened paper clip to press the recessed button.

Feb 25, 2010 | Casio FX-9750GPlus Calculator

### When i turn on the calculator i get a dark screen and when i try to adjust the con trast it doesnt change

this is what i think you mean, if i diss-understood you (thought you mean something else) im sorry, then i dont know what to do
thats when you set your ti 84+ screen to very dark. this is how to solve it:
go and open mirage OS, and then just press the "-" (minus) button. the screen should get lighter.

Nov 23, 2009 | Texas Instruments TI-83 Plus Calculator

### Program for calculator using vc++

hi, here the code...
class is used for items(item.h) . In this class are stored the two number into property and the result:
property double nr1;
property double nr2;

The operations like :asin,cos,power,pi,plu,divide,sqrt etc. are edited into inherited class from items:

//
#pragma once
#include "Items.h"

using namespace System;
public ref class asinus : public Items
{
public:

asinus(void)
{

}

double^ asin(double a)
{
return Math::Asin(a);
}

};

//

In the base class 6 boolean variable is used for the precedent operation:

bool plus;
bool minus;
bool produs;
bool divide;
bool sin;
bool prec;
For button equal:

private: System::Void btnegal_Click(System::Object^ sender, System::EventArgs^ e)
{
prec = false;

if(plus == true)
{
}
else if(minus == true)
{
}
else if(produs == true)
{
this->txtRes->Text = Convert::ToString(pr.inmultire(i.nr1,i.nr2));
}
else if(divide == true)
{
this->txtRes->Text = Convert::ToString(d.impartire(i.nr1,i.nr2));
}
}

there is a function for operaton click:
private: System::Void Operation_Click(System::Object^ sender, System::EventArgs^ e) { if(prec == false) { i.nr1 = Convert::ToDouble(this->txtRes->Text); } if(prec == true) { i.nr2 = Convert::ToDouble(this->txtRes->Text); } }

Apr 10, 2009 | Microsoft Computers & Internet

### There is no "plus equal" key!

press the plus key again, it should work. ie put a number in and press the plus key twice, it should double, and again it should double again and so on

Sep 16, 2008 | Casio DR-T220 Calculator

### Ti-83 plus

try changing the back up battery also. This generally helps. The next time you change your batteries, change them one at a time. don't take them all out at once. This won't happen if you do it like that.

Jan 19, 2008 | Texas Instruments TI-83 Plus Silver...

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