Question about Canon MP-25DV Calculator

2 Answers

Equal button I need to know how to make the sum show up at the bottom of the paper. When I add numbers, I cant figure out how to get a total.

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Re: equal button

Push the Diamond button - the one next to the plus sign on the right

Posted on Oct 22, 2007

Re: equal button - Canon MP-25DV Calculator Calculators

Hit *

Posted on Oct 15, 2007

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I'm trying to figure out a 3x3 magic square where the rows equal 21 18 10 and the columns equal 15 24 13 using the numbers 1-9

I don't think you can do it! Could you check your numbers.

If we are using the numbers 1-9 once and only once in a 3x3 magic square, the sum of the rows + the sum of the columns should be 90, since 1+2+3+4+5+6+7+8+9 in the rows adds up to 45 and 1+2+3+4+5+6+7+8+9 in the columns adds up to 45.

When trying to solve, the magic number seem to be the sums 24 and 10. To get 24, the only three numbers that add to 24 are 7 + 8 +9. Similarly to get 10, the lowest numbers re 1 and 2 and the smallest big number to use is 7. I then ran out of number trying to get 21, 13 and 15 sums.

Good luck,


May 21, 2015 | Calculators

1 Answer

Luke wants to find the difference 175 - 134. He has subtracted the hundreds and tens so far. What is the sum of the two numbers he has subtracted? How much does he still need to subtract?

SUM means adding not subtracting. so if you were wanting to add the total (the sum) of the amounts of the hundreds and the tens would be 170 plus 130 which would be 300 but the remainder from subtracting 130 from 170 would be 40. That would leave the single units 5 minus 4 of which the remainder is 1. So, the remainder from subtracting 134 from 175 is the reminder of subtracting the one hundred from the one hundred which is zero added to the remainder of subtracting the tens (70 minus 30) which is the remainder of 40 plus the remainder of subtracting the units of 5 minus 4 which is 1. So you need to add the 0 and the 40 and 1 which is the remaining sum of 41.

Sep 19, 2014 | Calculators

1 Answer

Consecutive even integers

The two numbers are 32 and 34. The rest is your homework, you do it.

Dec 19, 2013 | Calculators

1 Answer

Find 3 squares that add to 365 to show that 365 is a special number

[3, 10, 16], [4, 5, 18], [5, 12, 14], and [10, 11, 12] all work. Of course, there are an infinite number of numbers that are the sum of three squares.

Aug 22, 2012 | Calculators

1 Answer

How do i use the equal sign when solving an equation?

You enter the problem into the calculator and when you are finished you press the equals sign to make it give you the answer to your problem.

Here is an example;

If I wanted to know what the sum (or total) was for 2 + 10+ 16 - I would enter the number 2 and then the plus sign + and then the number ten and the plus sign + and then the number sixteen and the plus sign again + and then press the equals sign which looks like this =. when I press the equals sign = the calculator gives me the answer to my question of what the total of those numbers are.

I hope this helps?

Jul 16, 2011 | Casio fx-300ES Calculator

1 Answer

Cant figure out how to do standard deviation on this calculator


I assume you know the theory. I will show you the key strokes

For 1-Var statistics
Press [MODE][3:STAT] [1:1-VAR]. You are ready to enter values in the X column.
Enter a number and press [=]. Cursor jumps to second number to enter.
Keep entering numbers and pressing [=] till all numbers are in. Press the [=] key after the last one.
Press [AC] key to clear the screen.
Press [SHIFT] [STAT] (above digit 1.) then [5:Var]. Screen displays the statistical variables 1:n ;2: x bar; 3: x sigma n; 4:x sigma n-1.
Press the number corresponding to the statistical value you want, ex 1:n . The variable appears on screen. Press [=] and it will be displayed.
To display another variable press [SHIFT][STAT][5:Var][ 1,2, 3, or 4] .

To access the sum of squares sigma x^2 and the sum of data sigma x press[SHIFT][STAT][4:SUM] then [1: for sigma x^2] or [2: for sigma x]. Press [SHIFT][STAT][6:MinMax] to access minX and maxX.

For 2-var statistics
To perform 2 variable statistics you press [MODE][3:STAT] and any of the other regression options (except 1:1-Var). A two column template opens where you enter the X and Y values. When finished entering data, press [SHIFT][STAT][5:Var]. to access the different statistics. As I assumed above, you should be able to recognize what each variable means.

Jan 12, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

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

4 Answers

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


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!!

Sep 18, 2009 | Calculators

1 Answer

Can't get sum

Hello, my name is Curtis, and I am a Sharp Customer Service Rep. On this particular calculator some of the procedures to add, subtract, multiply, and divide can be confusing. To add and subract, if you want to print, set the switch to P-I, and enter in an amount such as ( 1+1 ) to print out the total you need to press the asterisk or the * button. To simply view the anser just press the + key again. the same goes with subtranction. The = sign is only used for multiplication and Division. If you have any problems or want someone to verbally explain this then please contact our Free Technical Support line at 1-800-237-4277 or 1-800-BE-SHARP

Apr 30, 2009 | Sharp EL-1750PIII Calculator

2 Answers

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

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