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I. Addition

1. Positive + Positive = Positive ( +3 PLUS +3 = +6)

2. Negative + Negative = Negative (-3 PLUS -3 = -6)

3. Positive + Negative OR Negative + Positive

Subtract the numbers then copy the sign of the number with greater value.

(+5 PLUS -3 = +2)

(-5 PLUS +3 = -2)

II. Subtraction

Change the sign of the subtrahend then the follow the rules of addition above.

Examples:

+5 MINUS -3 = +5 +3 = +8

+5 MINUS +3 = +5 -3 = +2

III. Multiplication

1. Positive x Positive = Positive (+3 times +5= +15)

2. Negative x Negative = Positive (-3 times -5 = +15)

3. Positive x Negative = Negative (+3 times -5 = -15)

4. Negative x Positive = Negative (-3 times +5 = -15)

IV. Division

Same rules as in multiplication

Note:

Like signs when multiplied or divided together = Positive

Unlike signs when multiplied or divided together = Negative

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Q: Rules in operation with signed numbers?
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Related questions

Rules in operation for signed numbers?

rules of operation sign of numbers


What are the rules governing the operation on signed numbers?

There are different rules for different operations.


What are signed numbers?

Signed numbers are "plus" and "minus" numbers.


Are addition and subtraction variables?

No, they are binary operators. Two numbers (or variables) are combined, according rules of operation to give a single answer.


What are the rules in simplifying series of operation on the set of whole numbers?

Parenthesis Exponents Multiply Divide Addition Subration Or, PEMDAS


What rules apply to performing operations with signed numbers?

additive inverse and associative property and if one is involved, then also identity


How are the mnemonic devices LA US and LP UN used in operating signed numbers?

These mnemonic devices were developed by SHERWIN E. BALBUENA, mathematics teacher of Cabitan NHS, Mandaon, Masbate, Philippines", to teach his students with disabilities the rules in operating signed numbers. LA US means "Like signs Add, Unlike signs Subtract". This device lets the student remember the rule in adding signed numbers. LP UN means "Like signs Positive, Unlike signs Negative". This device lets the student recall the rules in finding the product and quotient of two signed numbers.


What are the different rules in governing operations of real numbers?

The set of real numbers is closed under addition, subtraction, multiplication, and division (except that you cannot divide by zero). By closed, this means that if the two numbers in the operation are both real numbers, the result of the operation will always be a real number. Dividing by zero is undefined (for all practical purposes)


How do signed numbers differ from integers?

Positive signed numbers with have a + Positive integers will not.


What is operations on sign numbers?

Most operations may be carried out on signed numbers: addition, subtraction, multiplication, division, exponentiation, trigonometric functions and so on. For some operation the domain may need to be restricted (or the codomain extended).


What is a combination of variables and numbers and an operation?

complex numbers


How do you use signed numbers in real life?

Signed numbers are used for:TemperatureMoney, Accounting, or EconomyMath Problems