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Warm Up

Warm Up. Problem of the Day. Lesson Presentation. Lesson Quizzes. Warm Up Divide. 1. 56,000 ÷ 8 2. 5,219 ÷ 17 3. 9,180 ÷ 12. 7,000. 307. 765. Problem of the Day In his pocket, Bill has $0.77 made up of 10 coins. What are the coins?. 1 quarter, 3 dimes, 4 nickels, and 2 pennies.

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Warm Up

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  1. Warm Up Problem of the Day Lesson Presentation Lesson Quizzes

  2. Warm Up Divide. 1. 56,000 ÷ 8 2. 5,219 ÷ 17 3. 9,180 ÷ 12 7,000 307 765

  3. Problem of the Day In his pocket, Bill has $0.77 made up of 10 coins. What are the coins? 1 quarter, 3 dimes, 4 nickels, and 2 pennies

  4. Sunshine State Standards MA.6.A.1.2 Multiply and divide…decimals efficiently. AlsoMA.6.A.1.1, MA.6.A.1.3

  5. Remember! Quotient 0.15 0.75 5 Divisor Dividend

  6. Place a decimal point in the quotient directly above the decimal point in the dividend. Divide as you would with whole numbers. Additional Example 1A: Dividing a Decimal by a Whole Number Find the quotient. 0.84 ÷ 3 0. 2 8 3 0.84 – 6 24 – 24 0

  7. Place a decimal point in the quotient directly above the decimal point in the dividend. Divide as you would with whole numbers. Additional Example 1B: Dividing a Decimal by a Whole Number Find the quotient. 3.56 ÷ 4 0. 8 9 4 3.56 – 32 36 – 36 0

  8. Check It Out: Example 1 Find the quotient of 2.96 ÷ 4. 0. 7 4 4 2.96 – 28 16 – 16 0

  9. Substitute 9 for x. Sometimes you need to use a zero as a placeholder. 9 > 3, so place a zero in the quotient and divide 9 into 36. Additional Example 2A: Evaluating Decimal Expressions Evaluate 0.936 ÷ x for the given value of x. x = 9 0.936 ÷ x 0.936 ÷ 9 0. 1 0 4 9 0.936 – 9 3 – 0 36 – 36 0

  10. Substitute 18 for x. Sometimes you need to use a zero as a placeholder. 18 > 9, so place a zero in the quotient and divide 18 into 93. Additional Example 2B: Evaluating Decimal Expressions Evaluate 0.936 ÷ x for the given value of x. x = 18 0.936 ÷ x 0.936 ÷ 18 0. 0 5 2 18 0.936 – 0 93 – 90 36 – 36 0

  11. Check It Out: Example 2 Evaluate 3.054 ÷ a for a = 6. 0. 5 0 9 6 3.054 –30 5 – 0 54 – 54 0

  12. Remember! Multiplication can “undo” division. To check your answer to a division problem, multiply the divisor by the quotient.

  13. Place a decimal point in the quotient directly above the decimal point in the dividend. Divide as you would with whole numbers. Additional Example 3: Consumer ApplicationJodi and three of her friends are making a tile design. The materials cost $10.12. If they share the cost equally, how much should each person pay? $10.12 should be divided into four equal groups. Divide $10.12 by 4. $2. 5 3 4 $10.12 – 8 21 – 20 Check 12 2.53  4 = 10.12 – 12 Each person should pay $2.53. 0

  14. Check It Out: Example 3 Manuel and two of his friends went to lunch. With tip and tax, the bill came to $25.11. The friends agreed to split the cost equally. How much should each person pay? 3 7 8. 3 25.11 – 24 11 – 9 21 – 21 0 Each person should pay $8.37.

  15. Lesson Quizzes Standard Lesson Quiz Lesson Quiz for Student Response Systems

  16. Lesson Quiz Find each quotient. 1. 3.12 ÷ 8 2. 5.68 ÷ 8 Evaluate the expression 1.25 ÷ x for the given value of x. 3.x = 5 4.x = 25 5. The tennis team is having 3 of their tennis rackets restrung. The total cost is $54.75. What is the average cost per racket? 0.71 0.39 0.05 0.25 $18.25

  17. Lesson Quiz for Student Response Systems 1. Identify the quotient. 6.84  9 A. 0.84 B. 0.76 C. 0.62 D. 0.58

  18. Lesson Quiz for Student Response Systems 2. Identify the quotient. 4.59  9 A. 0.51 B. 0.62 C. 0.73 D. 0.84

  19. Lesson Quiz for Student Response Systems 3. Evaluate the expression 1.44  x for x = 12. A. 12 B. 1.2 C. 0.12 D. 0.012

  20. Lesson Quiz for Student Response Systems 4. Evaluate the expression 0.24  x for x = 12. A. 0.4 B. 0.2 C. 0.04 D. 0.02

  21. Lesson Quiz for Student Response Systems 5. At a fruit stand, 8 pounds of apples cost $2.80. Identify the average cost of apples per pound. A. $35.00 B. $3.50 C. $0.35 D. $0.03

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