vocabulary section 1-2 1-2...section 1-2: order of operations and evaluating expressions pearson...

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  • Bell Ringer

    O Evaluate the following expression for s = 2

    and t = 5.

    3𝑠(3)

    11 βˆ’ 5(𝑑)

    2

  • Section 1-2: Order of Operations and

    Evaluating ExpressionsPearson Algebra I

  • I am learning to…

    O Simplify expressions involving exponents.

    O Use the order of operations to evaluate

    expressions.

  • Vocabulary Section 1-2

    O Power: has two parts a base and an

    exponent.

    O Exponent: tells you how many times to

    multiply the base.

    O Base: large number in a power.

    O Simplify: a numerical expression when you

    replace it with its single numerical value.

  • Example 1: Simplifying Powers

    O 34

    O2

    3

    3

    O (0.5)3

  • Key Concept: Order of Operations

    O Parentheses

    O Exponents

    O Multiplication

    O Division

    O Addition

    O Subtraction

  • Example 2: Simplifying a Numerical Expression

    O 5 βˆ™ 7 βˆ’ 42 Γ· 2

    O 12 βˆ’ 25 Γ· 5

    O4+34

    7βˆ’2

  • Example 3: evaluating Algebraic Expressions

    O What is the value of each expression when a

    = 3 and b = 4.

    a) 3𝑏 βˆ’ π‘Ž2

    b) 2𝑏2 βˆ’ 7π‘Ž

  • Formative Assessments

    O Homework: page 13 #’s 10-34 even

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