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Comprehensive Overview of Chapter 1, Section 1.5 Exercises: Arithmetic and Cost Calculations

This document summarizes key exercises from Chapter 1, Section 1.5, focusing on arithmetic operations including addition, multiplication, and applications such as cost calculations for services and products. It presents various problem-solving techniques, including the Distributive Property and estimation methods. Exercises include repeated addition, identifying true or false statements, multiplying large numbers, and determining total costs for a boat purchase and a remodeling project. It serves as a valuable resource for students mastering foundational math concepts.

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Comprehensive Overview of Chapter 1, Section 1.5 Exercises: Arithmetic and Cost Calculations

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  1. Chapter 1 Section 1.5 Exercise #1

  2. 21 = 21 = and Find by repeated addition.

  3. Chapter 1 Section 1.5 Exercise #11

  4. Label the following as true or false. mi. = 24 False

  5. Chapter 1 Section 1.5 Exercise #35

  6. 9 3 9 2 1 Multiply. 1 3 6 2 327 59 29 3 4 3 16 5

  7. Chapter 1 Section 1.5 Exercise #49

  8. 2 7 4 2 3 6 3 Multiply. 1 2 1 1 2 3 3158 2034 6 2 12 3 4 4 7 9 0000 1 6 6 3

  9. Multiply. 3158 2034 6 2 12 3 4 4 7 9 0000 1 6 6 3 6,423,372

  10. Chapter 1 Section 1.5 Exercise #75

  11. Complete the statement using the Distributive Property.

  12. Chapter 1 Section 1.5 Exercise #79

  13. cars A rectangular parking lot has 14 rows of parking spaces and each row contains 24 spaces. How many cars can be parked in the lot? 1 24 spaces 14 rows 9 6 1 2 4 3 3 6

  14. Chapter 1 Section 1.5 Exercise #89

  15. Erin agrees to buy a boat by paying $2,500 down and $139 a month for 36 months. What is the total cost of the boat? 2 1 2 5 139 36 3 8 4 4 7 1 5 0 0 4

  16. $ Erin agrees to buy a boat by paying $2,500 down and $139 a month for 36 months. What is the total cost of the boat? 2500 down payment 5 0 0 4 total monthly payments 7504

  17. Chapter 1 Section 1.5 Exercise #91

  18. Job Hourly Wage Electrician $27 Plumber $22 Clerk $12 Accountant $18 The table above shows the hourly wages of four different types of jobs at a home remodeling company.

  19. Hours Job Hourly Wage (4) 50 Electrician $27 Plumber $22 Clerk $12 Accountant $18 (2) 21 4 6 Based on the plans for an addition, it is estimated that it will require four electricians each working 50 hours and two plumbers each working 21 hours. In addition, 4 hours of clerical work and 6 hours of accounting are needed. What is the cost of the job?

  20. 50 27 4 Job Hourly Wage Hours (4) 50 Electrician $27 Plumber $22 Clerk $12 Accountant $18 (2) 21 4 6 35 0 10 0 2 1 1350 5 0 0 4

  21. 21 50 27 22 35 10 0 2 1 1350 2 5 0 0 4 Job Hourly Wage Hours (4) 50 Electrician $27 Plumber $22 Clerk $12 Accountant $18 (2) 21 4 6 2 4 0 4 2 1 462 4 2 4 9

  22. 12 21 50 4 22 27 35 10 0 2 1 1350 5 0 0 4 Job Hourly Wage Hours (4) 50 Electrician $27 Plumber $22 Clerk $12 Accountant $18 (2) 21 4 6 2 4 0 4 2 1 462 2 4 8 2 4 4 9

  23. 12 21 50 4 22 27 35 10 0 2 1 1350 18 6 5 0 0 4 Job Hourly Wage Hours (4) 50 Electrician $27 Plumber $22 Clerk $12 Accountant $18 (2) 21 4 6 2 4 0 4 2 1 462 2 4 8 4 8 10 2 4 9

  24. + + + Job Hourly Wage Hours (4) 50 Electrician $27 Plumber $22 Clerk $12 Accountant $18 (2) 21 4 6 What is the cost of the job? 8 4 8 10 2 4 9 5 0 0 4

  25. 5400 924 48 + 108 $ Job Hourly Wage Hours (4) 50 Electrician $27 Plumber $22 Clerk $12 Accountant $18 (2) 21 4 6 What is the cost of the job? 6480

  26. Chapter 1 Section 1.5 Exercise #95

  27. 93 90 48 50 Estimate the product by rounding each factor to the nearest ten. 00 45 0 4500

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