Study Guide Order Of Operations
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This study guide provides information to help prepare for a math test. It lists order of operations as a topic, explaining that mathematical problems must be solved following the PEMDAS method: Parentheses, Exponents, Multiplication/Division, Addition/Subtraction. Two example problems are worked through step-by-step to demonstrate applying the order of operations, with the first problem solved as 40 - 2 x 16 = 8 and the second as 5 x 3 + (7 - 1) = 21.
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Study Guide Order Of Operations
- 1. Name __________________________________________ Date ____________ Polizzi/Woska Math – 6 Study Guide * Do not limit yourself to using only this study guide to prepare for the test. You also need to review your homework book, your notes, the materials provided in class, as well as remembering class discussions. Topics: 1. Order of Operations Order of Operations: When you solve math problems, you need to follow the order of operation: Parentheses, Exponents, Multiplication/Division, Addition/Subtraction (PEMDAS) There is a phrase that helps people remember this: Please Excuse My Dear Aunt Sally 40 – 2 x 4² 5 x 3 + (7 – 1) Step 1: Exponents 4² = 16 Step 1: Parentheses 7 – 1 = 6 New Problem: 40 – 2 x 16 New Problem: 5 x 3 + 6 Step 2: Multiplication 2 x 16 = 32 Step 2: Multiplication 5 x 3 = 15 New Problem: 40 – 32 New Problem: 15 + 6 Step 3: Subtraction 40 – 32 = 8 Step 3: Addition 15 + 6 = 21