1. Splash Screen Chapter 7 Multiply by One-Digit Numbers Click the mouse or press the space bar to continue. Chapter 7 Multiply by One-Digit Numbers Click the mouse or press the space bar to continue.

2. Chapter Menu Lesson 7-1Lesson 7-1Multiples of 10, 100, and 1,000 Lesson 7-2Lesson 7-2Problem-Solving Skill: Reasonable Answers Lesson 7-3Lesson 7-3Use Rounding to Estimate Products Lesson 7-4Lesson 7-4Multiply Two-Digit Numbers Lesson 7-5Lesson 7-5Problem-Solving Investigation: Choose a Strategy Lesson 7-6Lesson 7-6Multiply Multidigit Numbers Lesson 7-7Lesson 7-7Multiply Across Zeros 7 7 Multiply by One-Digit Numbers

3. Lesson 1 Menu Five-Minute Check (over Chapter 6) Main Idea California Standards Example 1: Multiples of 100 Example 2: Multiples of 1,000 Example 3: Multiply Mentally 7-1 Multiples of 10, 100, and 1,000

4. 7-1 Multiples of 10, 100, and 1,000 Lesson 1 MI/Vocab I will multiply multiples of 10, 100, and 1,000 using basic facts and patterns.

5. 7-1 Multiples of 10, 100, and 1,000 Lesson 1 Standard 1 Preparation for Standard 4NS3.2 Demonstrate an understanding of, and the ability to use, standard algorithms for multiplying a multidigit number by a two-digit number and for dividing a multidigit number by a one-digit number; use relationships between them to simplify computations and to check results.

6. You need to find 8 × 300. Use basic facts and patterns. Lesson 1 Ex1 A leopard shark gives birth to 8 pups in 1 litter. How many pups would be in 300 litters of that size? 7-1 Multiples of 10, 100, and 1,000 8 × 3 = 24 8 × 3 ones = 24 ones = 24 8 × 30 = 240 8 × 3 tens = 24 tens = 240 8 × 300 = 2,400 8 × 3 hundreds = 24 hundreds = 2,400 Answer: So, 300 litters of 8 would be 2,400 puppies. Notice that this answer is 8 × 3 with two zeros at the end.

7. Lesson 1 CYP1 7-1 Multiples of 10, 100, and 1,000 A.$16 B.$160 C.$1,600 D.$16,000 Teresa’s car payments are $200 a month. How much will she have paid after 8 months?

8. Lesson 1 Ex2 7-1 Multiples of 10, 100, and 1,000 8 × 7 = 56 8 × 7 ones = 56 ones = 56 8 × 70 = 560 8 × 7 tens = 56 tens = 560 8 × 700 = 5,600 8 × 7 hundreds = 56 hundreds = 5,600 Answer: So, 8 × 7,000 is 56,000. Notice that this answer is 8 × 7 with three zeros at the end. 8 × 7,000 = 56,000 8 × 7 thousands = 56 thousands = 56,000 Find 8 × 7,000.

9. Lesson 1 CYP2 7-1 Multiples of 10, 100, and 1,000 A.36 B.360 C.3,600 D.36,000 Find 4 × 0,000.

10. Lesson 1 Ex3 Orca whales live in pods and can weigh up to 8,000 pounds. What is the total weight of a pod of 6 orca whales? To find the total weight of the pod, you need to find 6 × 8,000. 7-1 Multiples of 10, 100, and 1,000

11. Lesson 1 Ex3 6 × 8,000 48,000 Answer: So, the weight of the pod of orca whales is 48,000 pounds. 7-1 Multiples of 10, 100, and 1,000

12. Lesson 1 CYP3 7-1 Multiples of 10, 100, and 1,000 A.200,000 kilograms B.20,000 kilograms C.2,000 kilograms D.200 kilograms A female adult elephant weighs about 4,000 kilograms. About how much would 5 adult female elephants weigh altogether?

13. End of Lesson 1

14. Lesson 2 Menu Five-Minute Check (over Lesson 7-1) Main Idea California Standards Example 1: Problem-Solving Skill 7-2 Problem-Solving Skill: Reasonable Answers

15. 7-2 Problem-Solving Skill: Reasonable Answers Lesson 2 MI/Vocab I will decide whether an answer to a problem is reasonable.

16. 7-2 Problem-Solving Skill: Reasonable Answers Lesson 2 Standard 1 Standard 4MR3.1 Evaluate the reasonableness of the solution in the context of the original situation.

17. 7-2 Problem-Solving Skill: Reasonable Answers Lesson 2 Standard 2 Preparation for Standard 4NS3.2 Demonstrate an understanding of, and the ability to use, standard algorithms for multiplying a multidigit number by a two-digit number and for dividing a multidigit number by a one-digit number; use relationships between them to simplify computations and to check results.

18. Lesson 2 Ex1 7-2 Problem-Solving Skill: Reasonable Answers Odell donated 3 cases of dog treats to a dog shelter. Each case has 900 treats. The dogs eat 2,500 treats each month. Odell says he has donated enough treats for more than one month. Is his claim reasonable?

19. Lesson 2 Ex1 Understand What facts do you know? 3 cases of dog treats were donated. Each case has 900 treats. The animals eat 2,500 treats each month. What do you need to find? Is it reasonable to say that the 3 cases of treats will last longer than one month? 7-2 Problem-Solving Skill: Reasonable Answers

20. Lesson 2 Ex1 Plan 7-2 Problem-Solving Skill: Reasonable Answers Find 3 × 900. Then determine if the amount is reasonable.

21. Lesson 2 Ex1 Solve 7-2 Problem-Solving Skill: Reasonable Answers 3 × 900 Answer: Since 2,700 > 2,500, it is reasonable to say that the three cases will last longer than one month. 2,700

22. Lesson 2 Ex1 Check 7-2 Problem-Solving Skill: Reasonable Answers You can add to see if the answer is correct. 900 + 900 + 900 = 2,700 3 × 900 = 2,700 So, the answer is correct.

23. End of Lesson 2

24. Lesson 3 Menu Five-Minute Check (over Lesson 7-2) Main Idea and Vocabulary California Standards Example 1: Estimate Products Example 2: Estimate Larger Products Example 3: Estimate Money 7-3 Use Rounding to Estimate Products

25. 7-3 Use Rounding to Estimate Products Lesson 3 MI/Vocab I will estimate products by rounding. estimate

26. 7-3 Use Rounding to Estimate Products Lesson 3 Standard 1 Standard 4NS3.1 Round whole numbers through the millions to the nearest ten, hundred, thousand, ten thousand, or hundred thousand.

27. Lesson 3 Ex1 The distance from Sydney, Australia, southwest to Wagga Wagga, Australia is 470 kilometers. About how many kilometers will be traveled in a round trip? Estimate 2 × 470. Round the larger factor to its greatest place. Then use basic facts and patterns to multiply. 7-3 Use Rounding to Estimate Products

28. Lesson 3 Ex1 2 × 470 2 × 500 7-3 Use Rounding to Estimate Products Answer: So, about 1,000 km will be traveled in a round trip to Wagga Wagga, Australia. Since 470 was rounded up, the estimated product is greater than the actual product.

29. Lesson 3 CYP1 7-3 Use Rounding to Estimate Products The distance from Terrine’s house to her aunt’s house is 384 miles. She plans on driving back and forth to her house to visit once in the spring and then again in the summer. About how many miles total will she drive in those two round trips? A.1,600 miles B.160 miles C.16 miles D.16,000 miles

30. Lesson 3 Ex2 7-3 Use Rounding to Estimate Products Estimate 8 × 3,252. 8 × 3,252 8 × 3,000 Answer: So, 8 × 3,252 is about 24,000. Since 3,252 was rounded down, the estimated product is less than the actual product. First round, then multiply using basic facts and patterns.

31. Lesson 3 CYP2 7-3 Use Rounding to Estimate Products A.32,000 B.3,200 C.28,000 D.2,800 Estimate 7 × 4,356.

32. Lesson 3 Ex3 A trip to the Grand Canyon will cost $2,804 per person. About how much will it cost for a group of 5 friends to travel there? 7-3 Use Rounding to Estimate Products You need to estimate 5 × $2,804. First round, then multiply. 5 × $2,804 5 × $3,000 = $15,000 Answer: So, the trip for 5 friends will cost about $15,000.

33. Lesson 3 CYP3 7-3 Use Rounding to Estimate Products A.$1,200 B.$12,000 C.$1,800 D.$18,000 If the Blackwell family saved $2,147 a year for 6 years, about how much money would they have saved up after 6 years?

34. End of Lesson 3

35. Lesson 4 Menu Five-Minute Check (over Lesson 7-3) Main Idea California Standards Example 1: Multiply with Regrouping 7-4 Multiply Two-Digit Numbers

36. 7-4 Multiply Two-Digit Numbers Lesson 4 MI/Vocab I will multiply a two-digit number by a one-digit number.

37. 7-4 Multiply Two-Digit Numbers Lesson 4 Standard 1 Preparation for Standard 4NS3.2 Demonstrate an understanding of, and the ability to use, standard algorithms for multiplying a multidigit number by a two-digit number and for dividing a multidigit number by a one-digit number; use relationships between them to simplify computations and to check results.

38. 7-4 Multiply Two-Digit Numbers Lesson 4 Standard 2 Standard 4MR2.1 Use estimation to verify the reasonableness of the solution in the context of the original situation.

39. Lesson 4 Ex1 7-4 Multiply Two-Digit Numbers Find 3 × 56. Estimate 3 × 56 3 × 60 = 180 One Way: Distributive Property 3 × 56 = (3 × 50) + (3 × 6) = 150 + 18 = 168

40. Lesson 4 Ex1 7-4 Multiply Two-Digit Numbers Another Way: Partial Products 56 3 × 150 18 + 168 50 6 3 15018 150 + 18 = 168

41. Lesson 4 Ex1 7-4 Multiply Two-Digit Numbers Another Way: Paper and Pencil Step 1 Multiply the ones. 5656 3 8 1 Regroup 18 ones as 1 ten and 8 ones. × 6 × 3 = 18 Step 2 Multiply the tens. 5656 3 8 1 × 16 Add the regrouped ten, 1. Answer: 3 × 56 = 168 3 × 5 = 15

42. Lesson 4 Ex1 7-4 Multiply Two-Digit Numbers Check for Reasonableness The product, 168, is close to the estimate, 180.

43. Lesson 4 CYP1 7-4 Multiply Two-Digit Numbers A.204 B.214 C.732 D.224 Find 7 × 32.

44. End of Lesson 4

45. Lesson 5 Menu Five-Minute Check (over Lesson 7-4) Main Idea California Standards Example 1: Problem-Solving Investigation 7-5 Problem-Solving Investigation: Choose a Strategy

46. 7-5 Problem-Solving Investigation: Choose a Strategy Lesson 5 MI/Vocab I will choose the best strategy to solve a problem.

47. 7-5 Problem-Solving Investigation: Choose a Strategy Lesson 5 Standard 1 Standard 4MR1.1 Analyze problems by identifying relationships, distinguishing relevant from irrelevant information, sequencing and prioritizing information, and observing patterns. Preparation for Standard 4NS3.3 Solve problems involving multiplication of multidigit numbers by two-digit numbers.

48. Lesson 5 Ex1 ISABEL: I am making punch for a party. One bowl of punch serves 35 guests. I am going to make four bowls of punch. YOUR MISSION: Find how many guests will be served by four bowls. 7-5 Problem-Solving Investigation: Choose a Strategy

49. Lesson 5 Ex1 Understand What facts do you know? One bowl of punch serves 35 guests. Isabel is making four bowls of punch. What do you need to find? Find how many guests will be served by four bowls of punch. 7-5 Problem-Solving Investigation: Choose a Strategy

50. Lesson 5 Ex1 Plan Use the four-step plan and write a number sentence. Multiply the number of guests served by one bowl of punch by the number of bowls being made. 7-5 Problem-Solving Investigation: Choose a Strategy

51. Lesson 5 Ex1 Solve 7-5 Problem-Solving Investigation: Choose a Strategy Multiply 4 × 5. Multiply 4 × 30. Add. 120 + 20 = 140 Answer: So, four bowls of punch will serve 140 guests. 35 × 4 20 + 120 140 You need to find 35 × 4 =.

52. Lesson 5 Ex1 Check Look back at the problem. You can use repeated addition to check your answer. 7-5 Problem-Solving Investigation: Choose a Strategy 35 + 35 + 35 + 35 = 140 So, the answer is correct.

53. End of Lesson 5

54. Lesson 6 Menu Five-Minute Check (over Lesson 7-5) Main Idea California Standards Example 1: Partial Products Example 2: Multiply Money 7-6 Multiply Multidigit Numbers

55. 7-6 Multiply Multidigit Numbers Lesson 6 MI/Vocab I will multiply a three-digit number by a one-digit number.

56. 7-6 Multiply Multidigit Numbers Lesson 6 Standard 1 Preparation for Standard 4NS3.2 Demonstrate an understanding of, and the ability to use, standard algorithms for multiplying a multidigit number by a two-digit number and for dividing a multidigit number by a one-digit number; use relationships between them to simplify computations and to check results.

57. 7-6 Multiply Multidigit Numbers Lesson 6 Standard 2 Standard 4MR2.1 Use estimation to verify the reasonableness of calculated results.

58. Lesson 6 Ex1 Aisha’s teacher bought 5 bags of rubber bands. If each bag has 185 bands in it, how many bands did she buy? 7-6 Multiply Multidigit Numbers Estimate 5 × 185 5 × 200 = 1,000 × 5 185 25 400 500 + 925 Multiply 5 × 5. Multiply 5 × 80. Multiply 5 × 100. Add the partial products.

59. Lesson 6 Ex1 Answer: So, Aisha’s teacher bought 925 rubber bands. 7-6 Multiply Multidigit Numbers 500 400 25 + 925 Check for Reasonableness The product, 925, is close to the estimate 1,000. 100+80+5 5500 400 25

60. Lesson 6 CYP1 7-6 Multiply Multidigit Numbers Meredith bought 3 containers of paper clips containing 225 in each container. How many paper clips did she buy altogether? A.675 paper clips B.700 paper clips C.450 paper clips D.625 paper clips

61. Lesson 6 Ex2 7-6 Multiply Multidigit Numbers Find 2 × $4,387. Step 1 Multiply the ones. × 2 $4,387 4 2 × 7 ones = 14 ones Regroup 14 as 1 ten and 4 ones. 1

62. Lesson 6 Ex2 7-6 Multiply Multidigit Numbers Step 2 Multiply the tens. × 2 $4,387 4 1 2 × 8 tens = 16 tens Add the regrouped tens. 16 tens + 1 ten = 17 tens Regroup 17 tens as 1 hundred and 7 tens. 7 1 Step 3 Multiply the hundreds. × 2 $4,387 4 1 7 1 2 × 3 hundreds = 6 hundreds Add the regrouped hundreds. 6 hundreds + 1 hundred = 7 hundreds 7

63. Lesson 6 Ex2 Step 4 Multiply the thousands. 7-6 Multiply Multidigit Numbers × 2 $4,387 4 1 7 1 7 2 × 4 thousands = 8 thousands $8, Answer: 2 × $4,387 = $8,774

64. Lesson 6 Ex2 7-6 Multiply Multidigit Numbers The area model shows that 2 × $4,387 = $8,774. $8,000 $ 600 $ 160 $ 14+ $8,774 $4,000+$300+$80 2$8,000 $600 $160 $7 $14 +

65. Lesson 6 CYP2 7-6 Multiply Multidigit Numbers A.$6,325 B.$6,435 C.$7,000 D.$7,435 Find 3 × $2,145.

66. End of Lesson 6

67. Lesson 7 Menu Five-Minute Check (over Lesson 7-6) Main Idea California Standards Example 1: Multiply Across Zeros Example 2: Multiply Across Zeros 7-7 Multiply Across Zeros

68. 7-7 Multiply Across Zeros Lesson 7 MI/Vocab I will multiply multidigit numbers with zeros by a one-digit number.

69. 7-7 Multiply Across Zeros Lesson 7 Standard 1 Preparation for Standard 4NS3.2 Demonstrate an understanding of, and the ability to use, standard algorithms for multiplying a multidigit number by a two-digit number and for dividing a multidigit number by a one-digit number; use relationships between them to simplify computations and to check results.

70. 7-7 Multiply Across Zeros Lesson 7 Standard 2 Standard 4MR2.1 Use estimation to verify the reasonableness of calculated results.

71. Lesson 7 Ex1 The lease payment for the school’s video equipment is $704 a month. How much can the school expect to pay for the first 5 months of school? 7-7 Multiply Across Zeros Multiply the cost of each month by 5. That is, find 5 × $704. Estimate 5 × $704 5 × $700 = $3,500

72. Lesson 7 Ex1 7-7 Multiply Across Zeros The area model shows 5 × $704.

73. Lesson 7 Ex1 7-7 Multiply Across Zeros One Way: Distributive Property 5 × $704 = (5 × $700) + (5 × $0) + (5 × $4) = $3,500 + $0 + $20 = $3,520

74. Lesson 7 Ex1 7-7 Multiply Across Zeros Another Way: Partial Products $704 × 5 $ 20 $ 0 $3,500 $3,520 Multiply 5 × $4. Multiply 5 × $0. Multiply 5 × $700. Add the partial products. + Answer: So, the lease payment for 5 months is $3,520.

75. Lesson 7 Ex1 7-7 Multiply Across Zeros Check for Reasonableness The answer, $3,520, is close to the estimate $3,500.

76. Lesson 7 CYP1 7-7 Multiply Across Zeros A.$1,600 B.$1,700 C.$1,602 D.$1,612 Julie’s rent is $403 a month. If she wants to pay 4 months all at once, how much does she have to pay?

77. Lesson 7 Ex2 7-7 Multiply Across Zeros A record-breaking pumpkin weighed 1,061 pounds. What would the total weight of 4 of these pumpkins be? Estimate 4 × $1,061 4 × $1,000 = $4,000 Step 1 Multiply the ones. × 4 1,061 4 4 × 1 one = 4 ones

78. Lesson 7 Ex2 7-7 Multiply Across Zeros Step 2 Multiply the tens. × 4 1,061 4 4 × 6 tens = 24 tens 4 Regroup 24 tens as 2 hundreds and 4 tens. 2 Step 3 Multiply the hundreds. × 4 1,061 4 4 2 4 × 0 hundreds = 0 hundreds Add the regrouped hundreds. 0 hundreds + 2 hundreds = 2 hundreds 2

79. Lesson 7 Ex2 7-7 Multiply Across Zeros Step 4 Multiply the thousands. 2 × 4 1,061 442 4 × 1 thousand = 4 thousands 4, Answer: So, the total weight of the pumpkins would be 4,244 pounds. Check for Reasonableness The answer, 4,244 is close to the estimate, 4,000. So the answer is reasonable.

80. Lesson 7 CYP2 7-7 Multiply Across Zeros A.18,134 B.18,684 C.19,684 D.19,134 Find 6 × 3,189.

81. End of Lesson 7

82. 7 7 Multiply by One-Digit Numbers 7 7 CR Menu Five-Minute Checks Math Tool Chest Image Bank Multiply Two-Digit Numbers

83. 7 7 Multiply by One-Digit Numbers IB Instructions To use the images that are on the following four slides in your own presentation: 1.Exit this presentation. 2.Open a chapter presentation using a full installation of Microsoft ® PowerPoint ® in editing mode and scroll to the Image Bank slides. 3.Select an image, copy it, and paste it into your presentation.

84. 7 7 Multiply by One-Digit Numbers IB 1

85. 7 7 Multiply by One-Digit Numbers IB 2

86. 7 7 Multiply by One-Digit Numbers IB 3

87. 7 7 Multiply by One-Digit Numbers IB 4

88. 7 7 Multiply by One-Digit Numbers 7 7 5Min Menu Lesson 7-1Lesson 7-1(over Chapter 6) Lesson 7-2Lesson 7-2(over Lesson 7-1) Lesson 7-3Lesson 7-3(over Lesson 7-2) Lesson 7-4Lesson 7-4(over Lesson 7-3) Lesson 7-5Lesson 7-5(over Lesson 7-4) Lesson 7-6Lesson 7-6(over Lesson 7-5) Lesson 7-7Lesson 7-7(over Lesson 7-6)

89. 7 7 Multiply by One-Digit Numbers A.A B.B C.C D.D 5Min 1-1 (over Chapter 6) A.Yes; 30¢ = 30¢ B.No; 30¢ ≠ 45¢ C.Yes; 30¢ = 45¢ D.No; 30¢ = 45¢ Tell whether the equation is balanced. 1 dime × 3 = (1 dime + 1 nickel) × 3

90. 7 7 Multiply by One-Digit Numbers 5Min 1-2 (over Chapter 6) A.Yes; 3 = 4 B.No; 4 ≠ 4 C.Yes; 4 = 4 D.No; 4 = 4 Tell whether the equation is balanced. 2 × 6 ÷ 3 = 16 ÷ 4

91. 7 7 Multiply by One-Digit Numbers 5Min 1-3 (over Chapter 6) A.8 B.5 C.10 D.7 Complete the equation to make it balanced. (8 × 5) ÷ 4 = 2 × ( __ – 3)

92. 7 7 Multiply by One-Digit Numbers A.A B.B C.C D.D 5Min 2-1 (over Lesson 7-1) A.30; 350; 3,500 B.35; 305; 3,000 C.35; 355; 3,555 D.35; 350; 3,500 Multiply. 5 × 7; 5 × 70; 5 × 700

93. 7 7 Multiply by One-Digit Numbers 5Min 2-2 (over Lesson 7-1) A.18; 189; 1,899 B.18; 180; 1,800 C.11; 110; 1,100 D.18; 108; 1,800 Multiply. 9 × 2; 9 × 20; 9 × 200

94. 7 7 Multiply by One-Digit Numbers 5Min 2-3 (over Lesson 7-1) A.12,333 B.9,003 C.27,000 D.27,333 Multiply. Use mental math. 3 × 9,000

95. 7 7 Multiply by One-Digit Numbers 5Min 2-4 (over Lesson 7-1) A.1,000 B.722 C.1,022 D.700 Multiply. Use mental math. 2 × 500

96. 7 7 Multiply by One-Digit Numbers A.A B.B C.C D.D 5Min 3-1 (over Lesson 7-2) A.No, 7 days in one week × 50 papers in one day is 350 papers. He will not deliver 320 papers. B.Yes, 7 days in one week × 50 papers in one day is 320 papers. He will deliver 320 papers. Decide whether the answer is reasonable. Explain your reasoning. Kyle delivers 50 papers a day in his neighborhood. Is it reasonable to expect that he will deliver 320 by the end of 1 week?

97. 7 7 Multiply by One-Digit Numbers A.A B.B C.C D.D 5Min 3-1 (over Lesson 7-2) C.No, 5 days in one week × 50 papers in one day is 250 papers. He will not deliver 320 papers. D.Yes, 7 days in one week × 50 papers in one day is 350 papers. He will deliver at least 320 papers.

98. 7 7 Multiply by One-Digit Numbers A.A B.B C.C D.D 5Min 3-1 (over Lesson 7-2) Answer: D.Yes, 7 days in one week × 50 papers in one day is 350 papers. He will deliver at least 320 papers.

99. 7 7 Multiply by One-Digit Numbers A.A B.B C.C D.D 5Min 4-1 (over Lesson 7-3) A.1,000 B.1,200 C.1,317 D.1,500 Estimate the product. 3 × 439

100. 7 7 Multiply by One-Digit Numbers 5Min 4-2 (over Lesson 7-3) A.4,500 B.5,472 C.6,000 D.5,400 Estimate the product. 6 × 912

101. 7 7 Multiply by One-Digit Numbers 5Min 4-3 (over Lesson 7-3) A.2,100 B.2,037 C.1,400 D.2,000 Estimate the product. 7 × 291

102. 7 7 Multiply by One-Digit Numbers 5Min 4-4 (over Lesson 7-3) A.272 B.240 C.270 D.280 Estimate the product. 4 × 68

103. 7 7 Multiply by One-Digit Numbers A.A B.B C.C D.D 5Min 5-1 (over Lesson 7-4) A.82 B.46 C.88 D.98 Multiply. 2 × 44

104. 7 7 Multiply by One-Digit Numbers 5Min 5-2 (over Lesson 7-4) A.126 B.156 C.43 D.160 Multiply. 4 × 39

105. 7 7 Multiply by One-Digit Numbers 5Min 5-3 (over Lesson 7-4) A.$54 B.$24 C.$61 D.$63 Multiply. 3 × $21

106. 7 7 Multiply by One-Digit Numbers 5Min 5-4 (over Lesson 7-4) A.445 B.405 C.144 D.440 Multiply. 5 × 89

107. 7 7 Multiply by One-Digit Numbers A.A B.B C.C D.D 5Min 6-1 (over Lesson 7-5) A.$40 B.$19 Use any strategy to solve. Adriana went to an amusement park on a camp trip during summer vacation. She spent $24 on an admission ticket, $3 on a drink, and bought 4 souvenir postcards for $1 each. If she had $12 left, how much money did she start with? C.$43 D.$33

108. 7 7 Multiply by One-Digit Numbers A.A B.B C.C D.D 5Min 7-1 (over Lesson 7-6) A.818 B.1,082 C.718 D.1,192 Multiply. Check for reasonableness. 2 × 596

109. 7 7 Multiply by One-Digit Numbers 5Min 7-2 (over Lesson 7-6) A.1,067 B.2,492 C.627 D.2,482 Multiply. Check for reasonableness. 4 × 623

110. 7 7 Multiply by One-Digit Numbers 5Min 7-3 (over Lesson 7-6) A.15,564 B.8,311 C.15,344 D.8,421 Multiply. Check for reasonableness. 3 × 5,188

111. 7 7 Multiply by One-Digit Numbers 5Min 7-4 (over Lesson 7-6) A.9,505 B.7,478 C.9,615 D.5,505 Multiply. Check for reasonableness. 5 × 1,923

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