Unit 2 order of operations
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This document discusses order of operations in math and explains that multiplication and division must be performed before addition and subtraction to get the correct answer. It provides examples like 3 + 6 x 4, where following the order of operations (BEDMAS) gives the answer of 27 rather than 9 x 4 = 36. The document also lists several common mnemonics like PEMDAS, PLEASE EXCUSE MY DEAR AUNT SALLY, and BIG ELEPHANTS DESTROY MICE AND SNAILS that remind students of the proper order of operations.
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3) Perform multiplication and division from left to right.
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2) Evaluate exponents next, from left to right.
3) Multiply and divide from left to right.
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Order Of Operations[1]
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The document explains the order of operations (PEMDAS) for solving math problems with multiple operations:
1) Perform operations inside parentheses first from left to right.
2) Perform exponents next from left to right.
3) Perform multiplication and division from left to right.
4) Perform addition and subtraction from left to right.
Some example problems are worked out step-by-step to demonstrate how to follow PEMDAS.
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The document explains the order of operations (PEMDAS) for solving math problems with multiple operations:
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2) Perform exponents next from left to right.
3) Perform multiplication and division from left to right.
4) Perform addition and subtraction from left to right.
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1) Order of operations, also known as PEMDAS, provides steps to solve mathematical expressions involving multiple operations.
2) The acronym PEMDAS stands for Parentheses, Exponents, Multiplication, Division, Addition, Subtraction - the order in which operations should be performed.
3) Following PEMDAS, expressions within parentheses are solved first, followed by exponents, then multiplication and division from left to right, and finally addition and subtraction from left to right. Examples are provided to illustrate how to use PEMDAS to solve expressions step-by-step.
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The document discusses absolute value and integer addition and subtraction. It provides examples of finding the absolute value of integers and performing operations involving integers with absolute values. The key points are:
- The absolute value of a number is its distance from zero on the number line.
- When adding or subtracting integers, follow the rules: same signs add, different signs subtract, and start with the greater number while following its sign.
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This document discusses multiples and using a hundreds chart to solve problems about callers winning prizes in a radio contest. It explains that the 6th caller would not win a prize because 6 is not a multiple of 3 or 7. The 14th caller would win a hat since 14 is a multiple of 7. A hundreds chart is used to circle the multiples of 3 for t-shirts and cross the multiples of 7 for hats. More callers will likely win t-shirts since there are more multiples of 3 than 7 in the lower numbers. Key learnings are that multiples are found by counting on by the given number and a common multiple is a number that is a multiple of two or more numbers.
Unit 2 comparing and ordering numbers
This document discusses comparing and ordering whole numbers. It explains how to use a number line to tell which of two countries, Japan or Paraguay, has a greater area based on their numerical area values. It also provides area values in square kilometers for 10 different countries and has students order the countries from greatest to least area and determine the area differences between some of the countries.
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- 1. Math 6: Whole Numbers Order of Operations
- 2. Getting Started 4 + 6 x 7 = 70 4 + 6 x 7 = 46 Which one is correct?
- 3. Explore Solve: 3 + 6 x 4 If you add first you get 9 x 4 = 36 If you multiply first you get 3 + 24 = 27 The RULE is you MUST do multiplication before addition to get the correct answer. Which one is the correct answer?
- 4. Copy
- 5. Order of Operations Other ways to remember BEDMAS Brackets, Exponents, Division, Multiplication, Addition, Subtraction Please Excuse My Dear Aunt Sally Parenthesis, Exponents, Multiply, Divide, Add, Subtract Big Elephants Destroy Mice And Snails Brackets, Exponents, Divide, Multiply, Add, Subtract ALWAYS FOLLOW THESE RULES Exceptions – divide and multiply – which ever comes first or add and subtract which ever comes first
- 6. In class work Pg. 56 + 57 #1, 6, 11
- 7. Homework pg. 24 + 25