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Answered 2013-01-03 00:05:30

The rules for addition are as follows:

  • The sum of two negative integers is a negative integer
  • The sum of two positive integers is a positive integer

The rules for subtraction are as follows:

  • 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
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Addition and subtraction are inverse functions.

Addition, subtraction and multiplication.

They are different in the same way that subtraction of integers is different from their addition.

Placing a question mark at the end of a phrase does not make it a sensible question. Try to use a whole sentence to describe what it is that you want answered. Your "question" sheds no light on what rules for integers you are interested in: rules for addition, subtraction, and so on; rules for multiplying numbers with integer indices, and so on.


Subtraction of integers is essentially addition of integers except the second integer is inverted. For example: 5 + 3 = 8 is a simple addition of integers. 5 - 3 = 5 is a simple subtraction of integers. It can be expressed by inverting the second value (the one right after the subration sign) and then switching the subtraction sign to an addition sign. So it would look like: 5 + (-3) = 5. Note that (-3) is the opposite of 3. So to do a more confusing subtraction problem like: 55 - (-5), we could rewrite this as: 55 + -(-5). From here it's easy to see that the two negatives cancel out. 55 + 5 = 60.

They are whole numbers used in division, multiplication, addition and subtraction.

addition subtraction multiplication division

Addition, subtraction, multiplication and division

It is difficult to answer the question because, for addition or subtraction, it is often easier to obtain the exact answer! If you line up the decimal points and then follow the rules of addition or subtraction - exactly as they would apply to whole numbers - you will get the correct answer!Estimation may be useful to check your answer if you are poor at addition or subtraction of integers. But, if that is the case, your estimate is equally likely to be wrong!

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)

Multiplication is the same as repeated addition. For example 12 * 3 = 12 + 12 + 12 12 * 4 = 12 + 12 + 12 + 12 and so on.

I am not at all sure that there are any rules that apply to integers in isolation. Any rules that exist are in the context of binary operations like addition or multiplication of integers.

who discovered addition and subtraction.

When you can do addition and subtraction without recourse to it. Then it simply becomes a distraction.

They have an inverse relationship. 3 + 4 = 7 7 - 4 = 3

You can have counting number in multiplication and addition. All integers are in multiplication, addition and subtraction. All rational numbers are in all four. Real numbers, complex numbers and other larger sets are consistent with the four operations.

definiton of addition and subtraction

Addition is the inverse operation to subtraction.

Addition and subtraction are reverse operations.

Integers are closed under subtraction, meaning that any subtraction problem with integers has a solution in the set of integers.

PEMDAS RULE IS parentheses,exponent,multiplication,division,addition,subtraction

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