Integer Operations Quick GuideVersión en línea PPT ni JL por Johnlloyd Juanitas 1 Introduction to Integer Operations In integers, the four fundamental operations are addition, subtraction, multiplication, and division. Understand their rules and sign behavior for accuracy. 2 Addition of Integers Addition combines numbers on a number line. Same signs add to a larger absolute value, different signs subtract, keeping the sign of the larger magnitude. 3 Subtraction of Integers Subtraction is adding the additive inverse. Compute a - b as a + (−b); follow sign rules to determine the final result. 4 Multiplication of Integers Multiplication signs: positive × positive = positive, negative × negative = positive, positive × negative = negative. Absolute values multiply as usual. 5 Division of Integers Division follows the same sign rules as multiplication. Quotients use absolute values, with the sign determined by the operands. 6 Sign Rules Summary Rules: add or subtract with care for signs; multiply or divide by signs; always consider absolute values first, then apply the correct sign. 7 Zero and Identity Properties Zero changes results via addition or multiplication, while 1 or −1 affect only signs in multiplication or division. 8 Common Mistakes Mistakes include ignoring sign when subtracting, misapplying division signs, or treating absolute values incorrectly during steps. 9 Practice Problem Compute: (−7) + 4, (−7) − 4, (−7) × (−5), and 12 ÷ (−3). Check signs and magnitudes carefully.
