Do Now 9/13/10 Be ready to copy Problem of the Week.

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Do Now 9/13/10 Be ready to copy Problem of the Week. Take out HW from Wednesday. Text p. 12-13, #14-32 evens & 36 Copy HW in your planner. Text p. 19, #10-36 evens Quiz sections 1.1-1.4 Thursday Be ready to copy Problem of the Week.

Homework Text p.12-13, #14-32 evens & 36 14). 16). 18). 20). 22). 2 to the 5th power; 24). 12 to the 3rd power (12 cubed); 26). 4 to the 4th power; 28). 0.6 to the 4th power; 30). 49; 0.16 32). 2401; 0.0256 36). a. 3375 in³; b. 121.5 lb

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

Objective SWBAT use the order of operations to evaluate expressions. In your journal answer the following question. Suppose “#” is a special operation that “a # b” means 4a – 2b. What is 3 # 2? What is 2 # 3? Is # a commutative operation?

Section 1.3, Order of Operations the rules established to evaluate an expression involving more than one operation 5 ÷ x · 6 13 * 22 - 14 4(y² – 8)

1 2 3 4 PEMDAS Order of Operations Evaluate expressions within grouping signs. ( ) parentheses, [ ] brackets, fraction bars Evaluate powers. Multiply and divide from left to right. Add and subtract from left to right. 1 2 3 4

Evaluate the Expression ² PEMDAS 2 + 7 x 3 4 + 7 x 3 4 + 21 25

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

a. (1 + m²) (1 + 3²) (1 + 9) 10 b. m³ – 6 ÷ 6 3³ – 6 ÷ 6 27 – 6 ÷ 6 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.

Evaluate the expression 27 32 2 3. – STEP 1 There are no grouping symbols, so go to Step 2. STEP 2 Evaluate powers. 27 32 2 – 3 = 27 9 2 – 3 Evaluate power. STEP 3 Multiply and divide from left to right. 27 9 2 – 3 = 3 2 – 3 Divide. STEP 4 3 2 – 3 = 6 – 3 Multiply. Add and subtract from left to right. 6 – 3 = 3 Subtract. ANSWER The value of the expression 27 32 2 – 3 is 3.

Evaluate the expression. 7(5) Subtract within parentheses. = 35 Multiply. b. Rewrite fraction as division. Evaluate within parentheses. Divide. c. 2[30 – (8 + 13)] = 2[30 – 21] Add within parentheses. = 2[9] Subtract within brackets. = 18 Multiply.

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

24 NJASK7 Prep Homework Text p. 19, #10-36 even