I Need Basic Rules For Working With Integers In Algebra. Can Anyone Help Me?


3 Answers

Anonymous Profile
Anonymous answered
Addition: Same sign- add the numbers keep the same sign. Different sign- subtract the numbers and keep the sign of the largest #. Subtraction: Switch to addition and change 2nd # to its oppiste. Then same rules to addition apply here. Multiplication: Same sign- multiply, answers will always positve. Different sign- multiply, answers will always be negative. Division: Same sign- divide, answers will always be positive. Different sign- divide, answers will always be negative. Hope this helps!
Oddman Profile
Oddman answered
Working with integers in algebra is not different from working with integers in arithmetic (see Batmanfan's answer). You would be well-advised to pay attention to more things about integers:
 - what the factors are
 - which ones are prime
 - what the square is (it is a good idea to memorize squares up to 202 = 400, at least)
 - approximate values for square roots of numbers 2, 3, 5 (at least)
 - what the inverse is (for numbers 1-12, at least; 1/7=.142857142857....)
 - how to represent "any even integer" (2n, where n=any integer)
 - how to represent "any odd integer" (2n+1, where n=any integer).
As with most things, you will learn these as you need them.

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