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Evaluating Expressions

Join us for a hands-on evaluation of mathematical expressions using the order of operations (BEDMAS: Brackets, Exponents, Division, Multiplication, Addition, Subtraction). In this session, we will need seven volunteers to solve the equation (12) ÷ (–3) – (–2) × (5). Various examples will be introduced, including strategies for simplifying expressions both in teams and individually. Participants will also tackle challenges involving variables and learn the importance of substituting values correctly. Get ready for engaging practice and collaborative learning!

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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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