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Integers and real numbers 9/7/11 Whole Numbers: 0,1,2,3,4,… Integers: Whole numbers and their opposites. …-2,-1,0,1,2,… 9-8-11 Addends: Numbers that are added together Absolute Value: Distance from zero Sum: The answer to an addition problem Addend + Addend = Sum Rules for addition: positive + positive = positive negative + negative = negative positive + negative = positive or negative depending on the addend with the greater absolute value. 9-9-11 Difference – The answer to a subtraction problem. Rule for subtraction: To subtract a number you add the opposite 9-12-11 Product: The answer to a multiplication problem. Factors: Numbers that are multiplied together. Factor x Factor = Product Rules for multiplication: positive X positive = positive negative X negative = positive positive X negative = negative When there is an even number of negative factors, the product is positive. When there is an odd number of negative factors, the product is negative.