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Homework Tips for 1st Week |
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Rule for Addition & Subtraction of Signed Numbers Like Signs...Add & take the same sign Unlike Signs...Subtract & take the sign of the larger + ( )...Remove ( ) and outside sign and keep sign of what's inside - ( ) ...Remove ( ) and outside sign and change sign of what's inside Rule for Multiplication and Division of Signed Numbers Like Signs...Positive Result Unlike Signs...Negative result
Order of Operations... PEMDAS (Memory Guide) P... Do what's in parenthesis first E...Exponents next MD...Multiplication or division as they appear from left to right AS... Addition or subtraction as they apear from left to right
Do all homework problems, not just some of them! |
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by Ellen Freedman, All Rights Reserved.