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Positive plus positive is positive.
Negative plus negative is negative.
Positive plus negative is positive if the absolute value of the positive number is greater than the absolute value of the negative one.
Positive plus negative is negative if the absolute value of the negative number is greater than the absolute value of the positive one.
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What are the rules of addition?
If you mean integers, well if you have two integers of the same sign that you are adding, add and the sign stays the same. If you have different signs, subtract and keep the sign of the one that has more. Regular numbers you just add them.
When adding two rational numbers with different signs the sum will be zero Is this aways sometimes or never true?
sometimes true (when the rational numbers are the same)
What are the basic rules for multiplying and dividing sign numbers?
Temporarily ignore the signs and multiply or divide as usualIf signs of the two numbers to be multiplied or divided, add + sign to your answer. If signs are different, add - ( minus) to your answer.+ signs are optional-- a number without a sign is assumed to be positive.
What are the rules in adding subtracting multiplying and dividing integers?
Adding integers, if they have the same sign, add their absolute values and keep the same sign. Subtracting, change the sign of the 2nd number and the add using rules of addition. Multiplying and dividing, Divide the absolute values, if the signs are the same the answer is positive, if the signs are different the answer is negative.
What is the rule for adding integers with different signs?
If it is two negative numbers then you add: ex: -7 + -5 = -12 If it is two different signs, then you subtract: ex: -8 + 2 = -6 Can you see which one is the larger absolute value? 8 is larger than 2 so it is negative.
