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Unformatted text preview: Supplementary Course Module A: Simplifying Numeric Expressions Assignment 1 & Integers Â¡ Fractions Integers: & An integer is a natural number which has a descriptive ( either a & + Â¡ or a & Â¡ Â¡ ) attached to it. & Thus, the & + Â¡ and & Â¡ Â¡ symbols can have two meanings, depending on whether the sign is attached to one number or is placed between two numbers. Specifically: 5 + 3 the & + Â¡ indicates the operation of addition +3 the & + Â¡ indicates the value of 3 is positive (greater than zero) 5 Â¡ 3 the & Â¡ Â¡ indicates the operation of subtraction Â¡ 3 the & Â¡ Â¡ indicates the value of 3 is negative (less than zero) & When adding and subtracting integers, we often encounter two signs together, one representing the action and the other representing a descriptive. & We summarize the &net effectÂ¡ of the combination of the two in the following chart with the following interpretation: think of the action as either being given something (addition) or having something taken away (subtraction) and that the something is either good (positive) or bad (negative). Action Descriptive Result Example + being given + something good ) + is good 5 + (+2) = 5 + 2 = 7 + being given Â¡ something bad ) Â¡ is bad 5 + ( Â¡ 2) = 5...
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This note was uploaded on 11/25/2010 for the course MATH MA110 taught by Professor Hu during the Spring '10 term at Wilfred Laurier University .
 Spring '10
 HU
 Fractions, Integers

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