Question about Office Equipment & Supplies

# I have a canon p23-dtsc calculator but am unable to subtratct an ordionary sum.What am I doing wrong

I AM UNABLT TO subtract an ordionary sum like 90 - 70 = 20.hOW DO I DO THIS

Posted by Anonymous on

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Posted on Jan 02, 2017

Enter a number, then press + for positive, or - for negative.

Example,

47 +
12-
___
35

It is bass-ackward from most calculators, and you will screw up with any other calculator when you get used to it.

Just remember what value the number is that you just put in (i.e. positive or negative.)

Posted on Apr 14, 2009

Big calculators work a little different than handheld calculators. Like the above commentor explained, if you have a basic "whats 100 minus 20?" You have to entered as 100 + 20 -- And when you hit the minus button at the end, it will give you the total. 100 is the positive number, and the 20 is the negative number that your subtracting. Also you can hit 20 -- 100 + and get the same total because you entering 20 as the negative and 100 as the positive, just in reverse.

Posted on Aug 24, 2009

Posted on Mar 12, 2010

Install paper roll with end coming up from rear. Insert end of paper into slot at back of calculator until it stops. Then press feed button until paper advance thru slop at top.

Posted on Jul 17, 2010

Posted on Sep 13, 2010

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## Related Questions:

### Where is the grand total key located on the Canon P23-DH V

The Grand Total Key is the * on the far bottom right side.

So, when you are adding/subtracting stuff, your input would look something like this:

426+
532+
958*

I'm a current Business Technologies student at Job Corps and I JUST went over how to use this kind of calculator with my instructor. I hope this helped!

Feb 23, 2012 | Canon P23-DH Calculator

### I want to do subtraction. But when I enter the "

There's a negative button and a minus button. I think you're accidently pressing the negative button. The actual subtraction button is the red "-" button above the "+" button. I hope this helps, but if all else fails, you can always add a negative!

Apr 16, 2011 | Canon P23-DH Calculator

### How to add figures and then subtract from a larger number

use the + key after each number to add the total will appear on screen. When all numbers have been added, enter number to subtract and then press - key. The subtracted number will appear in read on the paper (if two color). and then press the star key to get total.

Jul 08, 2010 | Canon P23-DHV Calculator

### How do you subtract on this calculator? if I do 10 minus it puts that minus in front of 10 and it can not subtract?

Its a little strange. Suppose you want subtract 10 from 38. Do this:
Enter 38 press plus key.
Enter 10, press minus key.
Press the equal sign. You will have the result.

Oct 05, 2009 | Canon P23-DH Calculator

### How to add and subtract on a canon p23-dh v

Enter a number, then press + for positive, or - for negative.

Example,

47 +
12-
___
35

It is bass-ackward from most calculators, and you will screw up with any other calculator when you get used to it.

Just remember what value the number is that you just put in (i.e. positive or negative.)

Apr 02, 2009 | Canon P23-DHV Calculator

### Printing Totals

The asterix (*) next to the big fat plus key prints the running total.

Just figured that out. Why doesn't Canon have a downloadable manual for this thing?

Oct 23, 2008 | Canon P23-DHV Calculator

### Why oh Why>

Because this is an adding machine you would use the total button (*) not the = for ading and subtracting the = is only used in multiplcation and division

Apr 12, 2008 | Canon P23-DH Calculator

### How do you do basic subtraction?

Equals is used during a calculation of division, percentage, multiplication, etc. Use the total key or * key for a total of substraction or addition.
If this helps, please rate me. Thanks, Patty

Dec 28, 2007 | Canon P23-DH Calculator

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