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7th Grade Math / Lesson 4: Translating

TRANSLATING
What will we be learning in this unit?


  • This unit will review some basic terms and concepts needed to continue through this math class.
  • Today's lesson will cover translating expressions and equations.


TRANSLATING


Translating is changing from one form to another. (from written words to algebra form or from algebra form to written words)

    Examples:

    1. The product of 3 and a number translates to 3x.
    2. Four is equal to the difference of 10 and a number translates to 4 = 10 - x.
    3. Three more than a number is 10 translates to X + 3 = 10.


TRANSLATING


Important words to use know when translating

Addition: increased by                                Subtraction: decreased by
                plus                                                                     minus
                sum                                                                    difference
                more than                                                           less than
 
Multiplication: product                               Division: quotient
                         multiplied by                                         divided by
                         times                             

Equal sign:
    equals                                 Variable: a number
                       is equal to                                            some number
                       is                                                          what number


TRANSLATING


Practice

Translate the following.


  1. 5 more than a number.
  2. 12 is equal to the product of 3 and 4.
  3. A number decreased by 6.


TRANSLATING


Practice

Translate the following.


  1. 5 more than a number.                           X + 5
  2. 12 is equal to the product of 3 and 4.    12 = 3 * 4
  3. A number decreased by 6.                     Y - 6