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Well I believe you may be referring to the fact that whenever you subtract you actually "add the opposite." Another phrase people may use is to "plus a negative." This is not as accurate as add the opposite. An example would 12-5. It can be written as 12 + -5. You are simply adding the opposite of positive 5 which is negative 5. Now this may seem silly, but where it is useful is when you have a lot of negatives. For example. -10- -5. For some this is confusing until we add the opposite. I can rewrite this as -10 + 5. I simply took the opposite of -5 which was positive 5 and added it to -10. This equals -5. Hope this helps.
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How do you Use braces and digits to designate the set of integers?
-1,-2,-3
Why do we use Z and Q to represent integers?
We use Q for Rationals... which is repreentative of Quocentia (Quotient), since rationals are RATIOs or fractions.
How can you use algebra tiles to simplify an algebraic expression?
you can add your integers as addition and round them to simplest form.
Is the number 81 irrational?
No - because it can be represented as a ratio of integers : 81 = 81/1 Any number that can be represented as a ratio of 2 integers is classified as a rational number (other than that you can't use 0 for the denominator)
What symbol correctly compares two fractions?
You can use the same symbols that you use to compare integers or decimals: equal, greater than, greater-than-or-equal, etc.
How can you use addition of integers to subtract integers?
Subtracting an integer is the same as adding the additive inverse. In symbols: a - b = a + (-b), where "-b" is the additive inverse (the opposite) of b.
Rules in subtracting like and unlike sign?
to subtrct integers ,rewrite as adding opposites and use the rules for addtion of integers..
What is the rule for subtracting integers?
if they are two positive numbers, do it normally.If there is a negative and a positive, change it to addition and switch the SECOND integer sign. Only works with two integers in a subtraction question.Example: (-32)-(+2)= (-34) / (-32)+(-2)=(-34)
What methods can you use to solve for the sum or difference of integers?
To find the sum of integers, you use addition.To find the difference, you use subtraction.
Rules for adding and subtracting integers?
ADDING: same sign, add and keep that sign. opposite sides, subtract their absolute values and use the sign of the number with the larger absolute value SUBRTRACTING: change the sign of the subtrahend (2nd number) then ADD using rules above.
Why do you add an integer opposite when subtracting integers?
to make the integer zero for example: 2x+7y=7x+9 in this step's need to transpose 7x to the left member, 2x-7x+7y=7x-7x+9 look! it become zero and 7x is already transpose to the left member then that's the purpose of adding its opposite We use the opposite of a real numbers to distinguish the number from a negative number. The opposites of reals are real, whereas negative numbers are imaginary numbers. In the above example values and variables are assumed to be real.
What are the uses of integers?
There are several different ways that you can use integers in everyday situations. For example you can use integers in the Winter, you use them with the temperature.
What was the first culture to use negative integers?
The Chinese and Hindu were the first to use negative integers
How are subtracting and adding related?
use numbers
How do you factor out 2x2-127x-4896?
Are you sure you typed this correctly? Using normal methods this not factorable -- it si PRIME for the integers. You can use the quadratic formula, but that gives irrational answers for this quadratic.
How do you use integers?
Personally, I use them to count with.
What you use integers for?
Counting
