PRE ALGEBRA NOTES 9-12

Sept. 12  Evaluating Expressions  page 44

 To evaluate an expression, replace each variable with a number.  Then compute, follow orders of operations.Examples:  Evaluate each expression for  c=2,y=-3, z=101.  c+5 =  7              4y = -12                   8y/c= -12                  (z+c)/y = -42.  16-z = 6               cyz= -60                   3z - lcl =28

HOMEWORK PAGE 45  1-20

PRE ALGEBRA

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