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INTEGERS AND REAL NUMBERS Whole Numbers : 0,1,2,3,4 ….. Integers : Whole numbers and their opposites. …. -2, -1, 0, 1, 2, …. 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. Difference : The answer to a subtraction problem. Rule for subtraction: To subtract a number you add the opposite 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. Reciprocal = The flip of a fraction Examples: 2/3, 3/2 8, 1/8 1/7, 7 4 ½, 2/9 5/2, 2/5 Quotient: The answer to a division problem Rules for division: positive divided by a positive = positive negative divided by a negative = positive positive divided by a negative = negative negative divided by a positive = negative