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Do Now 9/8/10

Do Now 9/8/10. Take out HW from last night. Text p.5-7, #4-52 multiples of 4 Copy HW in your planner. Text p. 10-11, #2-32 even In your journal answer the following. If 26 = L. of the A. means 26 letters of the alphabet , how many of the following “equations” can you translate?

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Do Now 9/8/10

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  1. Do Now 9/8/10 • Take out HW from last night. • Text p.5-7, #4-52 multiples of 4 • Copy HW in your planner. • Text p. 10-11, #2-32 even • In your journal answer the following. If 26 = L. of the A. means 26 letters of the alphabet, how many of the following “equations” can you translate? 24 = H in a D. 90 = D. in a R.A. 18 = H. on the G.C. 8 = P. in the S.S. 1000 = W. that a P. is W. Hours in a Day Degrees in a Right Angle Holes on the Golf Course Planets in the Solar System Words that a Picture is Worth

  2. HomeworkText p. 5-7, #4-52 multiples of 4 28). 1 32). 64 36). 16/81 40). 17.4 44). C 48). 30 m 52). C 4). 2.4 8). 4.5 12). 1/3 16). Twelve to the fifth power; 20). One half to the eighth power; 24). 0.4 was multiplied by two instead of squared; 0.16

  3. Evaluate the Expression 3 + 7 x 3 3 + 7 = 10 10 x 3 = 30 7 x 3 = 21 3 +21 = 24

  4. Objective • SWBAT use the order of operations to evaluate expressions.

  5. Section 1.2, Order of Operations Order of Operations – the rules established to evaluate an expression involving more than one operation 5 ÷ x · 6 13 * 22 - 14 4(y² – 8)

  6. Order of Operations PEMDAS 1 2 3 4

  7. Evaluate the Expression ² PEMDAS 2 + 7 x3 4 + 7 x3 4 + 21 25

  8. Evaluate the Expression ³ [2 x (4 + 4)] +3 ³ [2 x 8] +3 ³ 16 +3 16 + 27 PEMDAS 43

  9. Evaluate the expressions when m = 3. a. (1 +m²) (1 + 3²) Substitute. (1 + 9) Evaluate power. 10 Add within parentheses. b. m³ – 6 ÷ 6 3³– 6 ÷ 6 Substitute. 27– 6 ÷ 6 Evaluate power. 27–1 Divide. 26 Subtract.

  10. Evaluate the expression27 32 2 3. 27 32 2 – 3 = 27 92 – 3 ANSWER 32–3 =6–3 The value of the expression27 32 2 – 3 is 3. 279 2 – 3 =3 2 – 3 – STEP 1 There are no grouping symbols, so go to Step 2. STEP 2 Evaluatepowers. Evaluate power. STEP 3 Multiply and divide from left to right. Divide. STEP 4 Multiply. Add and subtract from left to right. 6 – 3 = 3 Subtract.

  11. 35 = 24 – (32+ 1) = b. = 24 – 10 14 = 2[9] = 18 = Evaluate the expression. 7(5) a. 7(13 – 8) = Subtract within parentheses. Multiply. 24 – (9+ 1) Evaluate power. Add within parentheses. Subtract. 2[30 –21] c. 2[30 – (8+ 13)] = Add within parentheses. Subtract within brackets. Multiply.

  12. 9 4 9x = 3(4+ 2) 3(x+ 2) 9 4 = 3 6 36 = 18 = 2 Evaluate the expression whenx=4. Substitute 4 for x. Add within parentheses. Multiply. Divide.

  13. 24 Homework Text p. 10-11, #2-32 even

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