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Do Now Solve the equation. Underline key words. Why did you solve the problem the way you did? Mr. Waffle is a circus clown. He starts the day with sixty-four pieces of candy. At the end of the day he has given away 299 pieces of candy. How many more pieces of candy did he have to get, in addition to his original sixty-four, to be able to give away that many pieces?
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Do Now Solve the equation. Underline key words. Why did you solve the problem the way you did? Mr. Waffle is a circus clown. He starts the day with sixty-four pieces of candy. At the end of the day he has given away 299 pieces of candy. How many more pieces of candy did he have to get, in addition to his original sixty-four, to be able to give away that many pieces? 235 pieces of candy
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Writing Expressions Key Words:
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Writing Expressions Key Words: Addition – plus, sum, more than, increased by, gain of
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Writing Expressions Key Words: Addition – plus, sum, more than, increased by, gain of Subtraction – minus, difference, less than, decreased by, less
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Writing Expressions Key Words: Addition – plus, sum, more than, increased by, gain of Subtraction – minus, difference, less than, decreased by, less Multiplication – times, product, double, by, of
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Writing Expressions Key Words: Addition – plus, sum, more than, increased by, gain of Subtraction – minus, difference, less than, decreased by, less Multiplication – times, product, double, by, of Division – divided by, quotient, half of, separate equally, per
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Writing Expressions Key Words: Addition – plus, sum, more than, increased by, gain of Subtraction – minus, difference, less than, decreased by, less Multiplication – times, product, double, by, of Division – divided by, quotient, half of, separate equally, per A Number = variable
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Writing Expressions Key Words: Addition – plus, sum, more than, increased by, gain of Subtraction – minus, difference, less than, decreased by, less Multiplication – times, product, double, by, of Division – divided by, quotient, half of, separate equally, per A Number = variable Is - Equal
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Writing Expressions Examples: Four times a number
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Writing Expressions Examples: Four times a number = 4 X n = 4(n) A number decreased by ten
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Writing Expressions Examples: Four times a number = 4 X n = 4(n) A number decreased by ten = n - 10 Eight less than a number
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Writing Expressions Examples: Four times a number = 4 X n = 4(n) A number decreased by ten = n - 10 Eight less than a number = n - 8 Switch the written order of numbers when you see LESS THAN or MORE THAN
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Writing Expressions Examples: 13 - n
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Writing Expressions Examples: 13 - n = thirteen decreased by a number or a number less than thirteen 5n
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Writing Expressions Examples: 13 - n = thirteen decreased by a number or a number less than thirteen 5n = five times a number n + 8 =
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Writing Expressions Examples: 13 - n = thirteen decreased by a number or a number less than thirteen or thirteen minus a number 5n = five times a number n + 8 = a number increased by eight or eight more than a number or a number plus eight
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Writing Expressions Review Vocabulary – Variable – a letter representing an unknown number value Expression – a set of symbols representing a mathematical value/situation Numerical Expression – a set of numbers and operations representing a mathematical value/situation Algebraic Expression – a set of VARIABLES, numbers and operations representing a mathematical value/situation Inverse Operations – undoing a mathematical operation by taking its opposite
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