Apr 21, 2015 · Explore related questions arithmetic factorial See similar questions with these tags.

I'm trying to mentally summarize the names of the operands for basic operations. I've got this so far: Addition: Augend + Addend = Sum. Subtraction: Minuend - Subtrahend = Difference. Multiplicati...

I'm looking for clear mathematical rules on rounding a number to n n decimal places. Everything seems perfectly clear for positive numbers. Here is for example what I found on math.about.com : Rule One Determine what your rounding digit is and look to the right side of it. If that digit is 4, 3, 2, 1, 4, 3, 2, 1, or 0 0, simply drop all digits to the right of it. Rule Two Determine what your ...

Are there some good overviews of basic formulas about addition, multiplication and exponentiation of cardinals (preferably available online)?

Recently I had this doubt about the order of precedence of mathematical operations multiplication and division. Given that we have a simple question like this 80 / 10 * 5 without parenthesis, what

May 20, 2013 · Many years ago, I noticed that 987654321/123456789 = 8.0000000729 … 987654321 / 123456789 = 8.0000000729. I sent it in to Martin Gardner at Scientific American and he published it in his column!!! My life has gone downhill since then:) My questions are: Why is this so? What happens beyond the " 729 729 "? What happens in bases other than 10 10?

By no-changer I refer, of course, to the unit element. That this can be added/multiplied to anything without resulting in a change should be accepted. I am unsure wether this approach helps understanding the hierarchy of arithmetic operators or wether you need the hierarchy for understanding the approach.

Explore related questions arithmetic big-list mental-arithmetic See similar questions with these tags.

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I have attached an image showing a Modulo 2 binary division. I can roughly understand the working below which is using XOR calculation but I am not sure how the answer (in red) is being computed ...