Translating Words into Mathematical Symbols

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Translating Words into Mathematical Symbols
1.5

• Goal
• Translate words into Mathematical Symbols.
• Key Words
• translate
• phrase
• sentence

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Translating Words into Mathematical Symbols
1.5

• TRANSLATING WORDS INTO MATHEMATICAL SYMBOLS
• To solve real-life problems, you often need to
  translate words into mathematical symbols.
• Translating Words
• Look for words like sum or difference that
  indicate mathematical operations.

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1.5
Translating Words into Mathematical Symbols
Translate Addition Phrases
Write the phrase as a variable expression. Let x
represent the number.
Phrase Translation The sum of 6 and a
number 8 more than a number A number plus
5 A number increased by 7
4
1.5
Translating Words into Mathematical Symbols
Translate Subtraction Phrases
Write the phrase as a variable expression. Let y
represent the number.
Phrase Translation The difference between
5 and a number 7 minus a number A number
decreased by 9 4 less than a number
5
1.5
Translating Words into Mathematical Symbols

• ) 11 more than a number
• ) A number decreased by 10

6
1.5
Translating Words into Mathematical Symbols

• IMPORTANT NOTE
• For addition and multiplication, the order is not
  important. The sum of 6 and a number can be
  written as 6x or x6.
• For subtraction and division, the order IS
  IMPORTANT. The quotient of a number and 4
  means , not .

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1.5
Translating Words into Mathematical Symbols
Translate Multiplication and Division Phrases
Write the phrase as a variable expression. Let n
represent the number. The product of 9 and a
number 10 times a number A number multiplied by
3
8
1.5
Translating Words into Mathematical Symbols
Translate Multiplication and Division Phrases
Write the phrase as a variable expression. Let n
represent the number. One fourth of a number The
quotient of a number and 6 7 divided by a number
9
1.5
Translating Words into Mathematical Symbols
Translate Sentences
Write each sentence as an equation or an
inequality. Sentence Translation The sum of a
number x and 12 is 16. The quotient of 15 and a
number x is less than 3.
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1.5
Translating Words into Mathematical Symbols
Translate Sentences
Write each sentence as an equation or an
inequality. Sentence Translation The product
of 5 and a number x is 25. 10 times a number is
greater than or equal to 50
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1.5
Translating Words into Mathematical Symbols
Translate and Solve a Real-Life Problem
You make a long distance telephone call. The
rate is .20 for each minute. The total cost of
the call is 6.00. How long was the call?
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Homework

• pgs. 33-35
• 14-34 evens, 36, 40, 42

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Trivia

• What animal can imitate any sound from a
  squeaking door to a cat meowing?
• What is the only animal sound that does not echo?
• What animal can survive longer without water than
  a camel?
• What is the only animal that can never get sick?
• What is the only cat that cannot retract its
  claws?
• What is the name of the dog from "The Grinch Who
  Stole Christmas?"
• What is the only bird that can sleep while
  flying?
• What fish has 100,000 taste buds?

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Answers

• mockingbird
• a ducks quack
• rat
• shark
• cheetah
• max
• albatross
• catfish