Do Now - PowerPoint PPT Presentation

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Do Now

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235 pieces of candy Writing Expressions Key Words: Writing ... a set of numbers and operations representing a mathematical value/situation Algebraic Expression ... – PowerPoint PPT presentation

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Title: Do Now


1
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?

2
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

3
Writing Expressions
  • Key Words

4
Writing Expressions
  • Key Words
  • Addition plus, sum, more than, increased by,
    gain of

5
Writing Expressions
  • Key Words
  • Addition plus, sum, more than, increased by,
    gain of
  • Subtraction minus, difference, less than,
    decreased by, less

6
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

7
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

8
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

9
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

10
Writing Expressions
  • Examples
  • Four times a number

11
Writing Expressions
  • Examples
  • Four times a number 4 X n 4(n)
  • A number decreased by ten

12
Writing Expressions
  • Examples
  • Four times a number 4 X n 4(n)
  • A number decreased by ten n - 10
  • Eight less than a number

13
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

14
Writing Expressions
  • Examples
  • 13 - n

15
Writing Expressions
  • Examples
  • 13 - n thirteen decreased by a number or
  • a number less than thirteen
  • 5n

16
Writing Expressions
  • Examples
  • 13 - n thirteen decreased by a number or
  • a number less than thirteen
  • 5n five times a number
  • n 8

17
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

18
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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