| Below are the notes on the topics we have covered in class. Please use these note to help you do your homework and study for your tests. |
| APPLIED MATH I |
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| Order of Operations: The order in which we SIMPLIFY problems that contain more than one math operation: FIRST do all Parentheses and Exponents as you come to them reading your problem left to right. Parentheses include all grouping symbols a. ( 12 - 5 ) b. [ 12 -5 ] c. { 12 - 5 } d. and the fraction bar. If your problem contains a fraction bar do all the math in the numerator (top) then do all the math in the denominator (bottom) and last of all divide the numerator answer by the denominator answer. If you have one set of parentheses inside another work from the inside out. { 12 - (2 + 3) } = { 12 - (5) } = 12 - 5 = 7 Exponents are indicated by some number (called the base) raised to a power. We will use the carrot key, " ^ " , to indicate raised to the power or exponent For example 3 squared or 3 raised to the power of 2 will be written as 3 ^ 2 = 3 x 3 = 9 EXAMPLE 24 / 2 - (5 - 4 ) x 2 ^ 3 = Here we would and 5 - 4 first and then 24 / 2 - 9 x 8 = raise 2 to the third power After we have calculated everything in parentheses and all exponents, SECONDLY we do all Multiplication and Division as you come to it reading your problem from left to right. EXAMPLE 24 / 2 - (5 - 4 ) x 2 ^ 3 = Here we would and 5 - 4 first and then 24 / 2 - 1 x 8 = raise 2 to the third power Next we will divide 24 by 2 because next we do all 12 - 8 = multiplication and division as it appears in our problem form left to right. Then we multiply 1 by 8 LAST of all we do Addition and Subtraction as you come to it reading your problem from left to right. EXAMPLE 24 / 2 - (5 - 4 ) x 2 ^ 3 = Here we would and 5 - 4 first and then 24 / 2 - 1 x 8 = raise 2 to the third power Next we will divide 24 by 2 because next we do all 12 - 8 = multiplication and division as it appears in our problem form left to right. Then we multiply 1 by 8 4 The answer of our example is 4. |
| 1. PARENTHESES, EXPONENTS 2. MULTIPLICATION, DIVISION 3. ADDITION, SUBTRACTION |
| ORDER OF OPERATION |
| PLEASE EXCUSE MY DEAR AUNT SUSIE |
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| Go to the FUNBRAIN site. Click on the QUIZ LAB link and enter our secret word math 01 (don't forget the space between the h and 0) and your first and last name. Take the following quizzes: Order of Operation Quiz 1 Order of Operation Quiz 2 |
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| PRACTICE: Go to the links below from MathGoodies.com, read the examples given, then do the practice problems. 1. Order of Operation |
| QUIZ: |