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Evaluating Expressions

Evaluating Expressions. Friday, Feb 7 th. Order of Operations. BEDMAS. Brackets. Subtraction. Multiplication. Exponents. Division. Addition. Acted Out Example. We need seven volunteers to make this equation: (12) ÷ (– 3 ) – (–2) × (5) = ? . Examples. Example #1

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Evaluating Expressions

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  1. Evaluating Expressions Friday, Feb 7th

  2. Order of Operations BEDMAS Brackets Subtraction Multiplication Exponents Division Addition

  3. Acted Out Example • We need seven volunteers to make this equation: (12) ÷ (–3) – (–2) × (5) = ?

  4. Examples Example #1 5(9 – 7)3 + 4 = ? Example #2 (–2)4+ (–5)(–3) = ?

  5. Examples Example #3: The fraction bar 3 + (–11) + (–4)(3) = (2)(–2)

  6. Practice in your Teams Simplify: 38 ÷ (–2) + 7 = ? Simplify: (–4 / 3)2+ (–5)/(9) = ? Simplify: Extra challenge: Solve for x (5 / 2)2 + (–3x)/(4) = 2 8 + (–2) – (–2)(4) = (2)(–3)

  7. Practice Individually Page 34 - 35 #1 – 16, 66, 69 Extra challenge: Word power activity on page 35

  8. Expressions with Variable One extra step when solving with variables: Plug in the right number for your variable first. Then solve! Example #1. Solve with r = 10 4(r – 7)2 + r = ? Example #2. Solve with f = 3 (–f)4 + (–5)(f) = ?

  9. Practice in your Teams Simplify with B = –2 (–12 / B)2 + 3B = ? Simplify with A = –5: 6A – A ÷ 5 = 5 – A

  10. Practice Individually Page 34 - 35 #1 – 16, 66, 69 Page 37 #1, 5, 6 – 8 Extra challenge: 9, 10

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