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What does MC,MR,M-,M+ on the calculator mean and do?

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Hi,

MR is Memory Recall
MC is Memory Clear
M+ is Memory add
M- is Memory subtract

These are used to add and subtract the answers to multi-step equations so you can do the small steps with the calculator, then store, change or recall the total as needed. You might add a long string of numbers in groups this way. Or you can do all operations in one parenthesis, then just store the total of each.

A good problem to illustrate this would be : (123 x 3) + (55 - 24) + (10^2) - (7 x 8) = ???
Using MR, M+ and M-, you can do each one as a group, and only store the answers. 123 x 3 = 369 so M+ to put 369 in memory. Clear it from the calculator. 55 - 24 = 31, so M+ to put this in memory and add to the 369 already there. Clear it from the calculator. 10^2 = 100, so M+ this to memory also to add it. Clear it from the calculator. 7 x 8 = 56 so M- this to SUBTRACT it from memory. Clear it from the calculator if desired. Now, when you then hit MR, you will get the total of all of these small equations in parenthesis -- 444.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Sep 18, 2009

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  • mohika_sinha
    mohika_sinha Apr 01, 2012

    Thanks :)

  • rochelle_san
    rochelle_san Oct 16, 2012

    what about mrc? everytime i tried what you said it doesn't give me the correct answer. since my calculator does not contain mr rather it has mrc on it

  • DEESHABH SHARMA Sep 18, 2013

    helpful and effective!!!..thnks buddy..

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  • Office Equip... Master
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Hello,

M- subtracts the displayed number from the total in memory.
M+ adds the displayed number to the total allreday in memory.
For the other two, I can only guess: MC Clears memory, MR recalls from memory. But that should not be difficult to verify on your calculator.

Hope it helps.

Posted on Sep 19, 2009

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  • Master
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Those are the "Memory" function keys.

[MC] = "Memory Clear"
[MR] = "Memory Recall"
[M+] = "Add to Memory"
[M-] = "Subtract from Memory"

This is used when you want to store a set of numbers or a total, temporarily, while you do another calculation.

Try this:

1 + 2 = [M+] ( you just placed a "3" into Memory)

Now enter this:
4 + 4 = (you have "8" on the display)

Now press these three keys: - [MR] =
Your display shows "5"

What you did was to take "8" and subract "3" that you stored in Memory. That equals 5.

Go through this again and it works!







Posted on Sep 18, 2009

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  • Just Gort
    Just Gort Sep 19, 2009

    Cool ...

    What brand is the calculator?

    Any other weird buttons?



    Thre is a caculator program on your computer, too!



    [Start]

    [Run]

    in the box, type: calc

    and press [Enter]



    You can use your mouse to click on the keys, or use the computer number keypad!



    Enjoy!

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  • Contributor
  • 1 Answer

Can the memory function be turned off?

Posted on Jul 23, 2010

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Posted on Jan 02, 2017

Ezrahite

Rofel Lantican

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SOURCE: What does MC, MR, &

Hi,

Welcome to Fixya. Heres the meaning that you're looking for.

MC - Memory Clear. this clears all contents of the memory
MR - Memory Recall. This displays the current content in the memory
MS - Memory Save. This saves the current display to memory.
M+ - Memory Add. This adds the current figure to the value already present in memory.

Thanks for using Fixya.

Posted on May 12, 2011

k24674

  • 8081 Answers

SOURCE: Hi, are there MC, MR, M-, M+ functions in Texas

The calculator has 10 memories (0 to 9)
To store a number (13) in memory 6 type 13 [STO] 6
To erase the content of memory 6 (M6) store 0 in int: 0 [STO] 6
To recall the content of memory location M7 press [RCL]7

To operate on the content of memory location M5 the syntax is [STO] [Op] 5, where [Op] is the operation symbol [+], [-],[x], [/] [y^x]

Ex: to raise the content of memory location 4 to the power of the displayed value, you press [STO][Y^x] 4

To clear all 10 memory locations
press [2nd][MEM][2nd][CLR WORK]

In short, although you do not have the keys you are accustomed to, you have a lot more. And please do not blame me if you feel disappointed.

Posted on Apr 19, 2010

ronanjd

  • 113 Answers

SOURCE: What do calculator buttons on

Not sure what they all mean but
ON/C turns calculator on or Cancels the current entry % divides by 100 or percent MC - memory clear M+ add to what is stored in memory M- subtract from what is in memory
You can get a manual at http://www.product-support-staples.com/DisplaySKU.aspx?SKU=600516
If this was useful please give me a thumbs up

Posted on Mar 20, 2011

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1 Answer

How do the memory keys work?


Memory keys normally work by adding and subtracting values to them. It looks like you have two memories available, memory I and memory II. (M- I M- II M+ I M+ II) You recall these values with the MR(C) keys to use them in other calculations. Finally, you can clear the memory using the MC keys. Sometimes there is not a MC key. In this case, the easiest way to clear the memory is to recall the memory, multiply it by -1, and add it to the memory. This should set it back to zero.

As an example, if we enter 5 M+ I, 10 M+ I, and then hit MR-I, we should get the answer of 15. If we then enter 13 M- I, and hit MR-I, we should now get an answer of 2. Now if we hit MC - I and then MR - I, we should get the answer of 0.

Let me know if you have any questions.

Good luck,

Paul

Mar 10, 2016 | Office Equipment & Supplies

1 Answer

What does the mr mean on a calculator


What make and model calculator? On most calculators with such a button, it means "memory recall." Press the button to recall the contents of the memory.

Apr 17, 2014 | Office Equipment & Supplies

1 Answer

How can i make my TI-84 Plus calculate the MR=MC.


It is easy to find solution for this problem. Type solve(0,1Q+118,5 = 0,02Q+15,Q)
See captured image below


1_17_2013_12_17_53_pm.jpg

Jan 16, 2013 | Texas Instruments TI-84 Plus Calculator

1 Answer

How do I load a number into the memory?


Enter the number then press M+.. this loads into memory. MC is mem clear..M- is mem minus. MR may be mem recall

Jul 19, 2011 | Adler Royal 121 PD Calculator

2 Answers

What does MC, MR, & MS mean?


Hi,

Welcome to Fixya. Heres the meaning that you're looking for.

MC - Memory Clear. this clears all contents of the memory
MR - Memory Recall. This displays the current content in the memory
MS - Memory Save. This saves the current display to memory.
M+ - Memory Add. This adds the current figure to the value already present in memory.

Thanks for using Fixya.

May 12, 2011 | Office Equipment & Supplies

1 Answer

What do calculator buttons on Staples calculators stand for ? In particular, 0N/C, %, +/t, MC, MR, M+, M-, --> I received this giant calculator as a X-mas present (2010) I really...


Not sure what they all mean but
ON/C turns calculator on or Cancels the current entry % divides by 100 or percent MC - memory clear M+ add to what is stored in memory M- subtract from what is in memory
You can get a manual at http://www.product-support-staples.com/DisplaySKU.aspx?SKU=600516
If this was useful please give me a thumbs up

Mar 20, 2011 | Staples SPLP500 Scientific Calculator

1 Answer

How to take off mem cleared


About hearing your question it sounds like you are having problems with memory(the letter M) that is always appears on the screen of your TI-15 Explorer Calculator. So, for you to cancel it you have to press "MR/MC" button twice then finally hit the "clear" button.

hope you get it right...

Feb 16, 2011 | Texas Instruments TI-15 Explorer...

1 Answer

What does MR, MC,MS & M+ means in a calculator


My best guess would be this ::

MR = Memory Recall

MC = Memory Clear

MS = Memory Store (Store this number in Memory)

M+ = Add this number to the number in Memory


Charlie

Feb 11, 2011 | Vacuums

1 Answer

Hi, are there MC, MR, M-, M+ functions in Texas Instruments BA II Plus calculator?


The calculator has 10 memories (0 to 9)
To store a number (13) in memory 6 type 13 [STO] 6
To erase the content of memory 6 (M6) store 0 in int: 0 [STO] 6
To recall the content of memory location M7 press [RCL]7

To operate on the content of memory location M5 the syntax is [STO] [Op] 5, where [Op] is the operation symbol [+], [-],[x], [/] [y^x]

Ex: to raise the content of memory location 4 to the power of the displayed value, you press [STO][Y^x] 4

To clear all 10 memory locations
press [2nd][MEM][2nd][CLR WORK]

In short, although you do not have the keys you are accustomed to, you have a lot more. And please do not blame me if you feel disappointed.

Apr 18, 2010 | Texas Instruments BA-II Plus Calculator

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